diff options
Diffstat (limited to 'lib/python2.7/idlelib/PyShell.py')
| -rw-r--r-- | lib/python2.7/idlelib/PyShell.py | 1568 |
1 files changed, 0 insertions, 1568 deletions
diff --git a/lib/python2.7/idlelib/PyShell.py b/lib/python2.7/idlelib/PyShell.py deleted file mode 100644 index 81af85a..0000000 --- a/lib/python2.7/idlelib/PyShell.py +++ /dev/null @@ -1,1568 +0,0 @@ -#! /usr/bin/env python - -import os -import os.path -import sys -import string -import getopt -import re -import socket -import time -import threading -import traceback -import types -import io - -import linecache -from code import InteractiveInterpreter -from platform import python_version - -try: - from Tkinter import * -except ImportError: - print>>sys.__stderr__, "** IDLE can't import Tkinter. " \ - "Your Python may not be configured for Tk. **" - sys.exit(1) -import tkMessageBox - -from idlelib.EditorWindow import EditorWindow, fixwordbreaks -from idlelib.FileList import FileList -from idlelib.ColorDelegator import ColorDelegator -from idlelib.UndoDelegator import UndoDelegator -from idlelib.OutputWindow import OutputWindow -from idlelib.configHandler import idleConf -from idlelib import idlever -from idlelib import rpc -from idlelib import Debugger -from idlelib import RemoteDebugger -from idlelib import macosxSupport - -IDENTCHARS = string.ascii_letters + string.digits + "_" -HOST = '127.0.0.1' # python execution server on localhost loopback -PORT = 0 # someday pass in host, port for remote debug capability - -try: - from signal import SIGTERM -except ImportError: - SIGTERM = 15 - -# Override warnings module to write to warning_stream. Initialize to send IDLE -# internal warnings to the console. ScriptBinding.check_syntax() will -# temporarily redirect the stream to the shell window to display warnings when -# checking user's code. -global warning_stream -warning_stream = sys.__stderr__ -try: - import warnings -except ImportError: - pass -else: - def idle_showwarning(message, category, filename, lineno, - file=None, line=None): - if file is None: - file = warning_stream - try: - file.write(warnings.formatwarning(message, category, filename, - lineno, line=line)) - except IOError: - pass ## file (probably __stderr__) is invalid, warning dropped. - warnings.showwarning = idle_showwarning - def idle_formatwarning(message, category, filename, lineno, line=None): - """Format warnings the IDLE way""" - s = "\nWarning (from warnings module):\n" - s += ' File \"%s\", line %s\n' % (filename, lineno) - if line is None: - line = linecache.getline(filename, lineno) - line = line.strip() - if line: - s += " %s\n" % line - s += "%s: %s\n>>> " % (category.__name__, message) - return s - warnings.formatwarning = idle_formatwarning - -def extended_linecache_checkcache(filename=None, - orig_checkcache=linecache.checkcache): - """Extend linecache.checkcache to preserve the <pyshell#...> entries - - Rather than repeating the linecache code, patch it to save the - <pyshell#...> entries, call the original linecache.checkcache() - (skipping them), and then restore the saved entries. - - orig_checkcache is bound at definition time to the original - method, allowing it to be patched. - """ - cache = linecache.cache - save = {} - for key in list(cache): - if key[:1] + key[-1:] == '<>': - save[key] = cache.pop(key) - orig_checkcache(filename) - cache.update(save) - -# Patch linecache.checkcache(): -linecache.checkcache = extended_linecache_checkcache - - -class PyShellEditorWindow(EditorWindow): - "Regular text edit window in IDLE, supports breakpoints" - - def __init__(self, *args): - self.breakpoints = [] - EditorWindow.__init__(self, *args) - self.text.bind("<<set-breakpoint-here>>", self.set_breakpoint_here) - self.text.bind("<<clear-breakpoint-here>>", self.clear_breakpoint_here) - self.text.bind("<<open-python-shell>>", self.flist.open_shell) - - self.breakpointPath = os.path.join(idleConf.GetUserCfgDir(), - 'breakpoints.lst') - # whenever a file is changed, restore breakpoints - def filename_changed_hook(old_hook=self.io.filename_change_hook, - self=self): - self.restore_file_breaks() - old_hook() - self.io.set_filename_change_hook(filename_changed_hook) - if self.io.filename: - self.restore_file_breaks() - - rmenu_specs = [ - ("Cut", "<<cut>>", "rmenu_check_cut"), - ("Copy", "<<copy>>", "rmenu_check_copy"), - ("Paste", "<<paste>>", "rmenu_check_paste"), - ("Set Breakpoint", "<<set-breakpoint-here>>", None), - ("Clear Breakpoint", "<<clear-breakpoint-here>>", None) - ] - - def set_breakpoint(self, lineno): - text = self.text - filename = self.io.filename - text.tag_add("BREAK", "%d.0" % lineno, "%d.0" % (lineno+1)) - try: - i = self.breakpoints.index(lineno) - except ValueError: # only add if missing, i.e. do once - self.breakpoints.append(lineno) - try: # update the subprocess debugger - debug = self.flist.pyshell.interp.debugger - debug.set_breakpoint_here(filename, lineno) - except: # but debugger may not be active right now.... - pass - - def set_breakpoint_here(self, event=None): - text = self.text - filename = self.io.filename - if not filename: - text.bell() - return - lineno = int(float(text.index("insert"))) - self.set_breakpoint(lineno) - - def clear_breakpoint_here(self, event=None): - text = self.text - filename = self.io.filename - if not filename: - text.bell() - return - lineno = int(float(text.index("insert"))) - try: - self.breakpoints.remove(lineno) - except: - pass - text.tag_remove("BREAK", "insert linestart",\ - "insert lineend +1char") - try: - debug = self.flist.pyshell.interp.debugger - debug.clear_breakpoint_here(filename, lineno) - except: - pass - - def clear_file_breaks(self): - if self.breakpoints: - text = self.text - filename = self.io.filename - if not filename: - text.bell() - return - self.breakpoints = [] - text.tag_remove("BREAK", "1.0", END) - try: - debug = self.flist.pyshell.interp.debugger - debug.clear_file_breaks(filename) - except: - pass - - def store_file_breaks(self): - "Save breakpoints when file is saved" - # XXX 13 Dec 2002 KBK Currently the file must be saved before it can - # be run. The breaks are saved at that time. If we introduce - # a temporary file save feature the save breaks functionality - # needs to be re-verified, since the breaks at the time the - # temp file is created may differ from the breaks at the last - # permanent save of the file. Currently, a break introduced - # after a save will be effective, but not persistent. - # This is necessary to keep the saved breaks synched with the - # saved file. - # - # Breakpoints are set as tagged ranges in the text. Certain - # kinds of edits cause these ranges to be deleted: Inserting - # or deleting a line just before a breakpoint, and certain - # deletions prior to a breakpoint. These issues need to be - # investigated and understood. It's not clear if they are - # Tk issues or IDLE issues, or whether they can actually - # be fixed. Since a modified file has to be saved before it is - # run, and since self.breakpoints (from which the subprocess - # debugger is loaded) is updated during the save, the visible - # breaks stay synched with the subprocess even if one of these - # unexpected breakpoint deletions occurs. - breaks = self.breakpoints - filename = self.io.filename - try: - with open(self.breakpointPath,"r") as old_file: - lines = old_file.readlines() - except IOError: - lines = [] - try: - with open(self.breakpointPath,"w") as new_file: - for line in lines: - if not line.startswith(filename + '='): - new_file.write(line) - self.update_breakpoints() - breaks = self.breakpoints - if breaks: - new_file.write(filename + '=' + str(breaks) + '\n') - except IOError as err: - if not getattr(self.root, "breakpoint_error_displayed", False): - self.root.breakpoint_error_displayed = True - tkMessageBox.showerror(title='IDLE Error', - message='Unable to update breakpoint list:\n%s' - % str(err), - parent=self.text) - - def restore_file_breaks(self): - self.text.update() # this enables setting "BREAK" tags to be visible - if self.io is None: - # can happen if IDLE closes due to the .update() call - return - filename = self.io.filename - if filename is None: - return - if os.path.isfile(self.breakpointPath): - lines = open(self.breakpointPath,"r").readlines() - for line in lines: - if line.startswith(filename + '='): - breakpoint_linenumbers = eval(line[len(filename)+1:]) - for breakpoint_linenumber in breakpoint_linenumbers: - self.set_breakpoint(breakpoint_linenumber) - - def update_breakpoints(self): - "Retrieves all the breakpoints in the current window" - text = self.text - ranges = text.tag_ranges("BREAK") - linenumber_list = self.ranges_to_linenumbers(ranges) - self.breakpoints = linenumber_list - - def ranges_to_linenumbers(self, ranges): - lines = [] - for index in range(0, len(ranges), 2): - lineno = int(float(ranges[index].string)) - end = int(float(ranges[index+1].string)) - while lineno < end: - lines.append(lineno) - lineno += 1 - return lines - -# XXX 13 Dec 2002 KBK Not used currently -# def saved_change_hook(self): -# "Extend base method - clear breaks if module is modified" -# if not self.get_saved(): -# self.clear_file_breaks() -# EditorWindow.saved_change_hook(self) - - def _close(self): - "Extend base method - clear breaks when module is closed" - self.clear_file_breaks() - EditorWindow._close(self) - - -class PyShellFileList(FileList): - "Extend base class: IDLE supports a shell and breakpoints" - - # override FileList's class variable, instances return PyShellEditorWindow - # instead of EditorWindow when new edit windows are created. - EditorWindow = PyShellEditorWindow - - pyshell = None - - def open_shell(self, event=None): - if self.pyshell: - self.pyshell.top.wakeup() - else: - self.pyshell = PyShell(self) - if self.pyshell: - if not self.pyshell.begin(): - return None - return self.pyshell - - -class ModifiedColorDelegator(ColorDelegator): - "Extend base class: colorizer for the shell window itself" - - def __init__(self): - ColorDelegator.__init__(self) - self.LoadTagDefs() - - def recolorize_main(self): - self.tag_remove("TODO", "1.0", "iomark") - self.tag_add("SYNC", "1.0", "iomark") - ColorDelegator.recolorize_main(self) - - def LoadTagDefs(self): - ColorDelegator.LoadTagDefs(self) - theme = idleConf.GetOption('main','Theme','name') - self.tagdefs.update({ - "stdin": {'background':None,'foreground':None}, - "stdout": idleConf.GetHighlight(theme, "stdout"), - "stderr": idleConf.GetHighlight(theme, "stderr"), - "console": idleConf.GetHighlight(theme, "console"), - }) - - def removecolors(self): - # Don't remove shell color tags before "iomark" - for tag in self.tagdefs: - self.tag_remove(tag, "iomark", "end") - -class ModifiedUndoDelegator(UndoDelegator): - "Extend base class: forbid insert/delete before the I/O mark" - - def insert(self, index, chars, tags=None): - try: - if self.delegate.compare(index, "<", "iomark"): - self.delegate.bell() - return - except TclError: - pass - UndoDelegator.insert(self, index, chars, tags) - - def delete(self, index1, index2=None): - try: - if self.delegate.compare(index1, "<", "iomark"): - self.delegate.bell() - return - except TclError: - pass - UndoDelegator.delete(self, index1, index2) - - -class MyRPCClient(rpc.RPCClient): - - def handle_EOF(self): - "Override the base class - just re-raise EOFError" - raise EOFError - - -class ModifiedInterpreter(InteractiveInterpreter): - - def __init__(self, tkconsole): - self.tkconsole = tkconsole - locals = sys.modules['__main__'].__dict__ - InteractiveInterpreter.__init__(self, locals=locals) - self.save_warnings_filters = None - self.restarting = False - self.subprocess_arglist = None - self.port = PORT - self.original_compiler_flags = self.compile.compiler.flags - - rpcclt = None - rpcpid = None - - def spawn_subprocess(self): - if self.subprocess_arglist is None: - self.subprocess_arglist = self.build_subprocess_arglist() - args = self.subprocess_arglist - self.rpcpid = os.spawnv(os.P_NOWAIT, sys.executable, args) - - def build_subprocess_arglist(self): - assert (self.port!=0), ( - "Socket should have been assigned a port number.") - w = ['-W' + s for s in sys.warnoptions] - if 1/2 > 0: # account for new division - w.append('-Qnew') - # Maybe IDLE is installed and is being accessed via sys.path, - # or maybe it's not installed and the idle.py script is being - # run from the IDLE source directory. - del_exitf = idleConf.GetOption('main', 'General', 'delete-exitfunc', - default=False, type='bool') - if __name__ == 'idlelib.PyShell': - command = "__import__('idlelib.run').run.main(%r)" % (del_exitf,) - else: - command = "__import__('run').main(%r)" % (del_exitf,) - if sys.platform[:3] == 'win' and ' ' in sys.executable: - # handle embedded space in path by quoting the argument - decorated_exec = '"%s"' % sys.executable - else: - decorated_exec = sys.executable - return [decorated_exec] + w + ["-c", command, str(self.port)] - - def start_subprocess(self): - addr = (HOST, self.port) - # GUI makes several attempts to acquire socket, listens for connection - for i in range(3): - time.sleep(i) - try: - self.rpcclt = MyRPCClient(addr) - break - except socket.error, err: - pass - else: - self.display_port_binding_error() - return None - # if PORT was 0, system will assign an 'ephemeral' port. Find it out: - self.port = self.rpcclt.listening_sock.getsockname()[1] - # if PORT was not 0, probably working with a remote execution server - if PORT != 0: - # To allow reconnection within the 2MSL wait (cf. Stevens TCP - # V1, 18.6), set SO_REUSEADDR. Note that this can be problematic - # on Windows since the implementation allows two active sockets on - # the same address! - self.rpcclt.listening_sock.setsockopt(socket.SOL_SOCKET, - socket.SO_REUSEADDR, 1) - self.spawn_subprocess() - #time.sleep(20) # test to simulate GUI not accepting connection - # Accept the connection from the Python execution server - self.rpcclt.listening_sock.settimeout(10) - try: - self.rpcclt.accept() - except socket.timeout, err: - self.display_no_subprocess_error() - return None - self.rpcclt.register("console", self.tkconsole) - self.rpcclt.register("stdin", self.tkconsole.stdin) - self.rpcclt.register("stdout", self.tkconsole.stdout) - self.rpcclt.register("stderr", self.tkconsole.stderr) - self.rpcclt.register("flist", self.tkconsole.flist) - self.rpcclt.register("linecache", linecache) - self.rpcclt.register("interp", self) - self.transfer_path(with_cwd=True) - self.poll_subprocess() - return self.rpcclt - - def restart_subprocess(self, with_cwd=False): - if self.restarting: - return self.rpcclt - self.restarting = True - # close only the subprocess debugger - debug = self.getdebugger() - if debug: - try: - # Only close subprocess debugger, don't unregister gui_adap! - RemoteDebugger.close_subprocess_debugger(self.rpcclt) - except: - pass - # Kill subprocess, spawn a new one, accept connection. - self.rpcclt.close() - self.unix_terminate() - console = self.tkconsole - was_executing = console.executing - console.executing = False - self.spawn_subprocess() - try: - self.rpcclt.accept() - except socket.timeout, err: - self.display_no_subprocess_error() - return None - self.transfer_path(with_cwd=with_cwd) - console.stop_readline() - # annotate restart in shell window and mark it - console.text.delete("iomark", "end-1c") - if was_executing: - console.write('\n') - console.showprompt() - halfbar = ((int(console.width) - 16) // 2) * '=' - console.write(halfbar + ' RESTART ' + halfbar) - console.text.mark_set("restart", "end-1c") - console.text.mark_gravity("restart", "left") - console.showprompt() - # restart subprocess debugger - if debug: - # Restarted debugger connects to current instance of debug GUI - gui = RemoteDebugger.restart_subprocess_debugger(self.rpcclt) - # reload remote debugger breakpoints for all PyShellEditWindows - debug.load_breakpoints() - self.compile.compiler.flags = self.original_compiler_flags - self.restarting = False - return self.rpcclt - - def __request_interrupt(self): - self.rpcclt.remotecall("exec", "interrupt_the_server", (), {}) - - def interrupt_subprocess(self): - threading.Thread(target=self.__request_interrupt).start() - - def kill_subprocess(self): - try: - self.rpcclt.close() - except AttributeError: # no socket - pass - self.unix_terminate() - self.tkconsole.executing = False - self.rpcclt = None - - def unix_terminate(self): - "UNIX: make sure subprocess is terminated and collect status" - if hasattr(os, 'kill'): - try: - os.kill(self.rpcpid, SIGTERM) - except OSError: - # process already terminated: - return - else: - try: - os.waitpid(self.rpcpid, 0) - except OSError: - return - - def transfer_path(self, with_cwd=False): - if with_cwd: # Issue 13506 - path = [''] # include Current Working Directory - path.extend(sys.path) - else: - path = sys.path - - self.runcommand("""if 1: - import sys as _sys - _sys.path = %r - del _sys - \n""" % (path,)) - - active_seq = None - - def poll_subprocess(self): - clt = self.rpcclt - if clt is None: - return - try: - response = clt.pollresponse(self.active_seq, wait=0.05) - except (EOFError, IOError, KeyboardInterrupt): - # lost connection or subprocess terminated itself, restart - # [the KBI is from rpc.SocketIO.handle_EOF()] - if self.tkconsole.closing: - return - response = None - self.restart_subprocess() - if response: - self.tkconsole.resetoutput() - self.active_seq = None - how, what = response - console = self.tkconsole.console - if how == "OK": - if what is not None: - print >>console, repr(what) - elif how == "EXCEPTION": - if self.tkconsole.getvar("<<toggle-jit-stack-viewer>>"): - self.remote_stack_viewer() - elif how == "ERROR": - errmsg = "PyShell.ModifiedInterpreter: Subprocess ERROR:\n" - print >>sys.__stderr__, errmsg, what - print >>console, errmsg, what - # we received a response to the currently active seq number: - try: - self.tkconsole.endexecuting() - except AttributeError: # shell may have closed - pass - # Reschedule myself - if not self.tkconsole.closing: - self.tkconsole.text.after(self.tkconsole.pollinterval, - self.poll_subprocess) - - debugger = None - - def setdebugger(self, debugger): - self.debugger = debugger - - def getdebugger(self): - return self.debugger - - def open_remote_stack_viewer(self): - """Initiate the remote stack viewer from a separate thread. - - This method is called from the subprocess, and by returning from this - method we allow the subprocess to unblock. After a bit the shell - requests the subprocess to open the remote stack viewer which returns a - static object looking at the last exception. It is queried through - the RPC mechanism. - - """ - self.tkconsole.text.after(300, self.remote_stack_viewer) - return - - def remote_stack_viewer(self): - from idlelib import RemoteObjectBrowser - oid = self.rpcclt.remotequeue("exec", "stackviewer", ("flist",), {}) - if oid is None: - self.tkconsole.root.bell() - return - item = RemoteObjectBrowser.StubObjectTreeItem(self.rpcclt, oid) - from idlelib.TreeWidget import ScrolledCanvas, TreeNode - top = Toplevel(self.tkconsole.root) - theme = idleConf.GetOption('main','Theme','name') - background = idleConf.GetHighlight(theme, 'normal')['background'] - sc = ScrolledCanvas(top, bg=background, highlightthickness=0) - sc.frame.pack(expand=1, fill="both") - node = TreeNode(sc.canvas, None, item) - node.expand() - # XXX Should GC the remote tree when closing the window - - gid = 0 - - def execsource(self, source): - "Like runsource() but assumes complete exec source" - filename = self.stuffsource(source) - self.execfile(filename, source) - - def execfile(self, filename, source=None): - "Execute an existing file" - if source is None: - source = open(filename, "r").read() - try: - code = compile(source, filename, "exec") - except (OverflowError, SyntaxError): - self.tkconsole.resetoutput() - tkerr = self.tkconsole.stderr - print>>tkerr, '*** Error in script or command!\n' - print>>tkerr, 'Traceback (most recent call last):' - InteractiveInterpreter.showsyntaxerror(self, filename) - self.tkconsole.showprompt() - else: - self.runcode(code) - - def runsource(self, source): - "Extend base class method: Stuff the source in the line cache first" - filename = self.stuffsource(source) - self.more = 0 - self.save_warnings_filters = warnings.filters[:] - warnings.filterwarnings(action="error", category=SyntaxWarning) - if isinstance(source, types.UnicodeType): - from idlelib import IOBinding - try: - source = source.encode(IOBinding.encoding) - except UnicodeError: - self.tkconsole.resetoutput() - self.write("Unsupported characters in input\n") - return - try: - # InteractiveInterpreter.runsource() calls its runcode() method, - # which is overridden (see below) - return InteractiveInterpreter.runsource(self, source, filename) - finally: - if self.save_warnings_filters is not None: - warnings.filters[:] = self.save_warnings_filters - self.save_warnings_filters = None - - def stuffsource(self, source): - "Stuff source in the filename cache" - filename = "<pyshell#%d>" % self.gid - self.gid = self.gid + 1 - lines = source.split("\n") - linecache.cache[filename] = len(source)+1, 0, lines, filename - return filename - - def prepend_syspath(self, filename): - "Prepend sys.path with file's directory if not already included" - self.runcommand("""if 1: - _filename = %r - import sys as _sys - from os.path import dirname as _dirname - _dir = _dirname(_filename) - if not _dir in _sys.path: - _sys.path.insert(0, _dir) - del _filename, _sys, _dirname, _dir - \n""" % (filename,)) - - def showsyntaxerror(self, filename=None): - """Extend base class method: Add Colorizing - - Color the offending position instead of printing it and pointing at it - with a caret. - - """ - text = self.tkconsole.text - stuff = self.unpackerror() - if stuff: - msg, lineno, offset, line = stuff - if lineno == 1: - pos = "iomark + %d chars" % (offset-1) - else: - pos = "iomark linestart + %d lines + %d chars" % \ - (lineno-1, offset-1) - text.tag_add("ERROR", pos) - text.see(pos) - char = text.get(pos) - if char and char in IDENTCHARS: - text.tag_add("ERROR", pos + " wordstart", pos) - self.tkconsole.resetoutput() - self.write("SyntaxError: %s\n" % str(msg)) - else: - self.tkconsole.resetoutput() - InteractiveInterpreter.showsyntaxerror(self, filename) - self.tkconsole.showprompt() - - def unpackerror(self): - type, value, tb = sys.exc_info() - ok = type is SyntaxError - if ok: - try: - msg, (dummy_filename, lineno, offset, line) = value - if not offset: - offset = 0 - except: - ok = 0 - if ok: - return msg, lineno, offset, line - else: - return None - - def showtraceback(self): - "Extend base class method to reset output properly" - self.tkconsole.resetoutput() - self.checklinecache() - InteractiveInterpreter.showtraceback(self) - if self.tkconsole.getvar("<<toggle-jit-stack-viewer>>"): - self.tkconsole.open_stack_viewer() - - def checklinecache(self): - c = linecache.cache - for key in c.keys(): - if key[:1] + key[-1:] != "<>": - del c[key] - - def runcommand(self, code): - "Run the code without invoking the debugger" - # The code better not raise an exception! - if self.tkconsole.executing: - self.display_executing_dialog() - return 0 - if self.rpcclt: - self.rpcclt.remotequeue("exec", "runcode", (code,), {}) - else: - exec code in self.locals - return 1 - - def runcode(self, code): - "Override base class method" - if self.tkconsole.executing: - self.interp.restart_subprocess() - self.checklinecache() - if self.save_warnings_filters is not None: - warnings.filters[:] = self.save_warnings_filters - self.save_warnings_filters = None - debugger = self.debugger - try: - self.tkconsole.beginexecuting() - if not debugger and self.rpcclt is not None: - self.active_seq = self.rpcclt.asyncqueue("exec", "runcode", - (code,), {}) - elif debugger: - debugger.run(code, self.locals) - else: - exec code in self.locals - except SystemExit: - if not self.tkconsole.closing: - if tkMessageBox.askyesno( - "Exit?", - "Do you want to exit altogether?", - default="yes", - master=self.tkconsole.text): - raise - else: - self.showtraceback() - else: - raise - except: - if use_subprocess: - print >>self.tkconsole.stderr, \ - "IDLE internal error in runcode()" - self.showtraceback() - self.tkconsole.endexecuting() - else: - if self.tkconsole.canceled: - self.tkconsole.canceled = False - print >>self.tkconsole.stderr, "KeyboardInterrupt" - else: - self.showtraceback() - finally: - if not use_subprocess: - try: - self.tkconsole.endexecuting() - except AttributeError: # shell may have closed - pass - - def write(self, s): - "Override base class method" - self.tkconsole.stderr.write(s) - - def display_port_binding_error(self): - tkMessageBox.showerror( - "Port Binding Error", - "IDLE can't bind to a TCP/IP port, which is necessary to " - "communicate with its Python execution server. This might be " - "because no networking is installed on this computer. " - "Run IDLE with the -n command line switch to start without a " - "subprocess and refer to Help/IDLE Help 'Running without a " - "subprocess' for further details.", - master=self.tkconsole.text) - - def display_no_subprocess_error(self): - tkMessageBox.showerror( - "Subprocess Startup Error", - "IDLE's subprocess didn't make connection. Either IDLE can't " - "start a subprocess or personal firewall software is blocking " - "the connection.", - master=self.tkconsole.text) - - def display_executing_dialog(self): - tkMessageBox.showerror( - "Already executing", - "The Python Shell window is already executing a command; " - "please wait until it is finished.", - master=self.tkconsole.text) - - -class PyShell(OutputWindow): - - shell_title = "Python " + python_version() + " Shell" - - # Override classes - ColorDelegator = ModifiedColorDelegator - UndoDelegator = ModifiedUndoDelegator - - # Override menus - menu_specs = [ - ("file", "_File"), - ("edit", "_Edit"), - ("debug", "_Debug"), - ("options", "_Options"), - ("windows", "_Windows"), - ("help", "_Help"), - ] - - if macosxSupport.runningAsOSXApp(): - del menu_specs[-3] - menu_specs[-2] = ("windows", "_Window") - - - # New classes - from idlelib.IdleHistory import History - - def __init__(self, flist=None): - if use_subprocess: - ms = self.menu_specs - if ms[2][0] != "shell": - ms.insert(2, ("shell", "She_ll")) - self.interp = ModifiedInterpreter(self) - if flist is None: - root = Tk() - fixwordbreaks(root) - root.withdraw() - flist = PyShellFileList(root) - # - OutputWindow.__init__(self, flist, None, None) - # -## self.config(usetabs=1, indentwidth=8, context_use_ps1=1) - self.usetabs = True - # indentwidth must be 8 when using tabs. See note in EditorWindow: - self.indentwidth = 8 - self.context_use_ps1 = True - # - text = self.text - text.configure(wrap="char") - text.bind("<<newline-and-indent>>", self.enter_callback) - text.bind("<<plain-newline-and-indent>>", self.linefeed_callback) - text.bind("<<interrupt-execution>>", self.cancel_callback) - text.bind("<<end-of-file>>", self.eof_callback) - text.bind("<<open-stack-viewer>>", self.open_stack_viewer) - text.bind("<<toggle-debugger>>", self.toggle_debugger) - text.bind("<<toggle-jit-stack-viewer>>", self.toggle_jit_stack_viewer) - if use_subprocess: - text.bind("<<view-restart>>", self.view_restart_mark) - text.bind("<<restart-shell>>", self.restart_shell) - # - self.save_stdout = sys.stdout - self.save_stderr = sys.stderr - self.save_stdin = sys.stdin - from idlelib import IOBinding - self.stdin = PseudoInputFile(self, "stdin", IOBinding.encoding) - self.stdout = PseudoOutputFile(self, "stdout", IOBinding.encoding) - self.stderr = PseudoOutputFile(self, "stderr", IOBinding.encoding) - self.console = PseudoOutputFile(self, "console", IOBinding.encoding) - if not use_subprocess: - sys.stdout = self.stdout - sys.stderr = self.stderr - sys.stdin = self.stdin - # - self.history = self.History(self.text) - # - self.pollinterval = 50 # millisec - - def get_standard_extension_names(self): - return idleConf.GetExtensions(shell_only=True) - - reading = False - executing = False - canceled = False - endoffile = False - closing = False - _stop_readline_flag = False - - def set_warning_stream(self, stream): - global warning_stream - warning_stream = stream - - def get_warning_stream(self): - return warning_stream - - def toggle_debugger(self, event=None): - if self.executing: - tkMessageBox.showerror("Don't debug now", - "You can only toggle the debugger when idle", - master=self.text) - self.set_debugger_indicator() - return "break" - else: - db = self.interp.getdebugger() - if db: - self.close_debugger() - else: - self.open_debugger() - - def set_debugger_indicator(self): - db = self.interp.getdebugger() - self.setvar("<<toggle-debugger>>", not not db) - - def toggle_jit_stack_viewer(self, event=None): - pass # All we need is the variable - - def close_debugger(self): - db = self.interp.getdebugger() - if db: - self.interp.setdebugger(None) - db.close() - if self.interp.rpcclt: - RemoteDebugger.close_remote_debugger(self.interp.rpcclt) - self.resetoutput() - self.console.write("[DEBUG OFF]\n") - sys.ps1 = ">>> " - self.showprompt() - self.set_debugger_indicator() - - def open_debugger(self): - if self.interp.rpcclt: - dbg_gui = RemoteDebugger.start_remote_debugger(self.interp.rpcclt, - self) - else: - dbg_gui = Debugger.Debugger(self) - self.interp.setdebugger(dbg_gui) - dbg_gui.load_breakpoints() - sys.ps1 = "[DEBUG ON]\n>>> " - self.showprompt() - self.set_debugger_indicator() - - def beginexecuting(self): - "Helper for ModifiedInterpreter" - self.resetoutput() - self.executing = 1 - - def endexecuting(self): - "Helper for ModifiedInterpreter" - self.executing = 0 - self.canceled = 0 - self.showprompt() - - def close(self): - "Extend EditorWindow.close()" - if self.executing: - response = tkMessageBox.askokcancel( - "Kill?", - "The program is still running!\n Do you want to kill it?", - default="ok", - parent=self.text) - if response is False: - return "cancel" - self.stop_readline() - self.canceled = True - self.closing = True - # Wait for poll_subprocess() rescheduling to stop - self.text.after(2 * self.pollinterval, self.close2) - - def close2(self): - return EditorWindow.close(self) - - def _close(self): - "Extend EditorWindow._close(), shut down debugger and execution server" - self.close_debugger() - if use_subprocess: - self.interp.kill_subprocess() - # Restore std streams - sys.stdout = self.save_stdout - sys.stderr = self.save_stderr - sys.stdin = self.save_stdin - # Break cycles - self.interp = None - self.console = None - self.flist.pyshell = None - self.history = None - EditorWindow._close(self) - - def ispythonsource(self, filename): - "Override EditorWindow method: never remove the colorizer" - return True - - def short_title(self): - return self.shell_title - - COPYRIGHT = \ - 'Type "copyright", "credits" or "license()" for more information.' - - def begin(self): - self.resetoutput() - if use_subprocess: - nosub = '' - client = self.interp.start_subprocess() - if not client: - self.close() - return False - else: - nosub = "==== No Subprocess ====" - self.write("Python %s on %s\n%s\n%s" % - (sys.version, sys.platform, self.COPYRIGHT, nosub)) - self.showprompt() - import Tkinter - Tkinter._default_root = None # 03Jan04 KBK What's this? - return True - - def stop_readline(self): - if not self.reading: # no nested mainloop to exit. - return - self._stop_readline_flag = True - self.top.quit() - - def readline(self): - save = self.reading - try: - self.reading = 1 - self.top.mainloop() # nested mainloop() - finally: - self.reading = save - if self._stop_readline_flag: - self._stop_readline_flag = False - return "" - line = self.text.get("iomark", "end-1c") - if len(line) == 0: # may be EOF if we quit our mainloop with Ctrl-C - line = "\n" - if isinstance(line, unicode): - from idlelib import IOBinding - try: - line = line.encode(IOBinding.encoding) - except UnicodeError: - pass - self.resetoutput() - if self.canceled: - self.canceled = 0 - if not use_subprocess: - raise KeyboardInterrupt - if self.endoffile: - self.endoffile = 0 - line = "" - return line - - def isatty(self): - return True - - def cancel_callback(self, event=None): - try: - if self.text.compare("sel.first", "!=", "sel.last"): - return # Active selection -- always use default binding - except: - pass - if not (self.executing or self.reading): - self.resetoutput() - self.interp.write("KeyboardInterrupt\n") - self.showprompt() - return "break" - self.endoffile = 0 - self.canceled = 1 - if (self.executing and self.interp.rpcclt): - if self.interp.getdebugger(): - self.interp.restart_subprocess() - else: - self.interp.interrupt_subprocess() - if self.reading: - self.top.quit() # exit the nested mainloop() in readline() - return "break" - - def eof_callback(self, event): - if self.executing and not self.reading: - return # Let the default binding (delete next char) take over - if not (self.text.compare("iomark", "==", "insert") and - self.text.compare("insert", "==", "end-1c")): - return # Let the default binding (delete next char) take over - if not self.executing: - self.resetoutput() - self.close() - else: - self.canceled = 0 - self.endoffile = 1 - self.top.quit() - return "break" - - def linefeed_callback(self, event): - # Insert a linefeed without entering anything (still autoindented) - if self.reading: - self.text.insert("insert", "\n") - self.text.see("insert") - else: - self.newline_and_indent_event(event) - return "break" - - def enter_callback(self, event): - if self.executing and not self.reading: - return # Let the default binding (insert '\n') take over - # If some text is selected, recall the selection - # (but only if this before the I/O mark) - try: - sel = self.text.get("sel.first", "sel.last") - if sel: - if self.text.compare("sel.last", "<=", "iomark"): - self.recall(sel, event) - return "break" - except: - pass - # If we're strictly before the line containing iomark, recall - # the current line, less a leading prompt, less leading or - # trailing whitespace - if self.text.compare("insert", "<", "iomark linestart"): - # Check if there's a relevant stdin range -- if so, use it - prev = self.text.tag_prevrange("stdin", "insert") - if prev and self.text.compare("insert", "<", prev[1]): - self.recall(self.text.get(prev[0], prev[1]), event) - return "break" - next = self.text.tag_nextrange("stdin", "insert") - if next and self.text.compare("insert lineend", ">=", next[0]): - self.recall(self.text.get(next[0], next[1]), event) - return "break" - # No stdin mark -- just get the current line, less any prompt - indices = self.text.tag_nextrange("console", "insert linestart") - if indices and \ - self.text.compare(indices[0], "<=", "insert linestart"): - self.recall(self.text.get(indices[1], "insert lineend"), event) - else: - self.recall(self.text.get("insert linestart", "insert lineend"), event) - return "break" - # If we're between the beginning of the line and the iomark, i.e. - # in the prompt area, move to the end of the prompt - if self.text.compare("insert", "<", "iomark"): - self.text.mark_set("insert", "iomark") - # If we're in the current input and there's only whitespace - # beyond the cursor, erase that whitespace first - s = self.text.get("insert", "end-1c") - if s and not s.strip(): - self.text.delete("insert", "end-1c") - # If we're in the current input before its last line, - # insert a newline right at the insert point - if self.text.compare("insert", "<", "end-1c linestart"): - self.newline_and_indent_event(event) - return "break" - # We're in the last line; append a newline and submit it - self.text.mark_set("insert", "end-1c") - if self.reading: - self.text.insert("insert", "\n") - self.text.see("insert") - else: - self.newline_and_indent_event(event) - self.text.tag_add("stdin", "iomark", "end-1c") - self.text.update_idletasks() - if self.reading: - self.top.quit() # Break out of recursive mainloop() in raw_input() - else: - self.runit() - return "break" - - def recall(self, s, event): - # remove leading and trailing empty or whitespace lines - s = re.sub(r'^\s*\n', '' , s) - s = re.sub(r'\n\s*$', '', s) - lines = s.split('\n') - self.text.undo_block_start() - try: - self.text.tag_remove("sel", "1.0", "end") - self.text.mark_set("insert", "end-1c") - prefix = self.text.get("insert linestart", "insert") - if prefix.rstrip().endswith(':'): - self.newline_and_indent_event(event) - prefix = self.text.get("insert linestart", "insert") - self.text.insert("insert", lines[0].strip()) - if len(lines) > 1: - orig_base_indent = re.search(r'^([ \t]*)', lines[0]).group(0) - new_base_indent = re.search(r'^([ \t]*)', prefix).group(0) - for line in lines[1:]: - if line.startswith(orig_base_indent): - # replace orig base indentation with new indentation - line = new_base_indent + line[len(orig_base_indent):] - self.text.insert('insert', '\n'+line.rstrip()) - finally: - self.text.see("insert") - self.text.undo_block_stop() - - def runit(self): - line = self.text.get("iomark", "end-1c") - # Strip off last newline and surrounding whitespace. - # (To allow you to hit return twice to end a statement.) - i = len(line) - while i > 0 and line[i-1] in " \t": - i = i-1 - if i > 0 and line[i-1] == "\n": - i = i-1 - while i > 0 and line[i-1] in " \t": - i = i-1 - line = line[:i] - more = self.interp.runsource(line) - - def open_stack_viewer(self, event=None): - if self.interp.rpcclt: - return self.interp.remote_stack_viewer() - try: - sys.last_traceback - except: - tkMessageBox.showerror("No stack trace", - "There is no stack trace yet.\n" - "(sys.last_traceback is not defined)", - master=self.text) - return - from idlelib.StackViewer import StackBrowser - sv = StackBrowser(self.root, self.flist) - - def view_restart_mark(self, event=None): - self.text.see("iomark") - self.text.see("restart") - - def restart_shell(self, event=None): - "Callback for Run/Restart Shell Cntl-F6" - self.interp.restart_subprocess(with_cwd=True) - - def showprompt(self): - self.resetoutput() - try: - s = str(sys.ps1) - except: - s = "" - self.console.write(s) - self.text.mark_set("insert", "end-1c") - self.set_line_and_column() - self.io.reset_undo() - - def resetoutput(self): - source = self.text.get("iomark", "end-1c") - if self.history: - self.history.history_store(source) - if self.text.get("end-2c") != "\n": - self.text.insert("end-1c", "\n") - self.text.mark_set("iomark", "end-1c") - self.set_line_and_column() - sys.stdout.softspace = 0 - - def write(self, s, tags=()): - try: - self.text.mark_gravity("iomark", "right") - OutputWindow.write(self, s, tags, "iomark") - self.text.mark_gravity("iomark", "left") - except: - pass - if self.canceled: - self.canceled = 0 - if not use_subprocess: - raise KeyboardInterrupt - - def rmenu_check_cut(self): - try: - if self.text.compare('sel.first', '<', 'iomark'): - return 'disabled' - except TclError: # no selection, so the index 'sel.first' doesn't exist - return 'disabled' - return super(PyShell, self).rmenu_check_cut() - - def rmenu_check_paste(self): - if self.text.compare('insert', '<', 'iomark'): - return 'disabled' - return super(PyShell, self).rmenu_check_paste() - -class PseudoFile(io.TextIOBase): - - def __init__(self, shell, tags, encoding=None): - self.shell = shell - self.tags = tags - self.softspace = 0 - self._encoding = encoding - - @property - def encoding(self): - return self._encoding - - @property - def name(self): - return '<%s>' % self.tags - - def isatty(self): - return True - - -class PseudoOutputFile(PseudoFile): - - def writable(self): - return True - - def write(self, s): - if self.closed: - raise ValueError("write to closed file") - if not isinstance(s, (basestring, bytearray)): - raise TypeError('must be string, not ' + type(s).__name__) - return self.shell.write(s, self.tags) - - -class PseudoInputFile(PseudoFile): - - def __init__(self, shell, tags, encoding=None): - PseudoFile.__init__(self, shell, tags, encoding) - self._line_buffer = '' - - def readable(self): - return True - - def read(self, size=-1): - if self.closed: - raise ValueError("read from closed file") - if size is None: - size = -1 - elif not isinstance(size, int): - raise TypeError('must be int, not ' + type(size).__name__) - result = self._line_buffer - self._line_buffer = '' - if size < 0: - while True: - line = self.shell.readline() - if not line: break - result += line - else: - while len(result) < size: - line = self.shell.readline() - if not line: break - result += line - self._line_buffer = result[size:] - result = result[:size] - return result - - def readline(self, size=-1): - if self.closed: - raise ValueError("read from closed file") - if size is None: - size = -1 - elif not isinstance(size, int): - raise TypeError('must be int, not ' + type(size).__name__) - line = self._line_buffer or self.shell.readline() - if size < 0: - size = len(line) - self._line_buffer = line[size:] - return line[:size] - - def close(self): - self.shell.close() - - -usage_msg = """\ - -USAGE: idle [-deins] [-t title] [file]* - idle [-dns] [-t title] (-c cmd | -r file) [arg]* - idle [-dns] [-t title] - [arg]* - - -h print this help message and exit - -n run IDLE without a subprocess (see Help/IDLE Help for details) - -The following options will override the IDLE 'settings' configuration: - - -e open an edit window - -i open a shell window - -The following options imply -i and will open a shell: - - -c cmd run the command in a shell, or - -r file run script from file - - -d enable the debugger - -s run $IDLESTARTUP or $PYTHONSTARTUP before anything else - -t title set title of shell window - -A default edit window will be bypassed when -c, -r, or - are used. - -[arg]* are passed to the command (-c) or script (-r) in sys.argv[1:]. - -Examples: - -idle - Open an edit window or shell depending on IDLE's configuration. - -idle foo.py foobar.py - Edit the files, also open a shell if configured to start with shell. - -idle -est "Baz" foo.py - Run $IDLESTARTUP or $PYTHONSTARTUP, edit foo.py, and open a shell - window with the title "Baz". - -idle -c "import sys; print sys.argv" "foo" - Open a shell window and run the command, passing "-c" in sys.argv[0] - and "foo" in sys.argv[1]. - -idle -d -s -r foo.py "Hello World" - Open a shell window, run a startup script, enable the debugger, and - run foo.py, passing "foo.py" in sys.argv[0] and "Hello World" in - sys.argv[1]. - -echo "import sys; print sys.argv" | idle - "foobar" - Open a shell window, run the script piped in, passing '' in sys.argv[0] - and "foobar" in sys.argv[1]. -""" - -def main(): - global flist, root, use_subprocess - - use_subprocess = True - enable_shell = False - enable_edit = False - debug = False - cmd = None - script = None - startup = False - try: - opts, args = getopt.getopt(sys.argv[1:], "c:deihnr:st:") - except getopt.error, msg: - sys.stderr.write("Error: %s\n" % str(msg)) - sys.stderr.write(usage_msg) - sys.exit(2) - for o, a in opts: - if o == '-c': - cmd = a - enable_shell = True - if o == '-d': - debug = True - enable_shell = True - if o == '-e': - enable_edit = True - if o == '-h': - sys.stdout.write(usage_msg) - sys.exit() - if o == '-i': - enable_shell = True - if o == '-n': - use_subprocess = False - if o == '-r': - script = a - if os.path.isfile(script): - pass - else: - print "No script file: ", script - sys.exit() - enable_shell = True - if o == '-s': - startup = True - enable_shell = True - if o == '-t': - PyShell.shell_title = a - enable_shell = True - if args and args[0] == '-': - cmd = sys.stdin.read() - enable_shell = True - # process sys.argv and sys.path: - for i in range(len(sys.path)): - sys.path[i] = os.path.abspath(sys.path[i]) - if args and args[0] == '-': - sys.argv = [''] + args[1:] - elif cmd: - sys.argv = ['-c'] + args - elif script: - sys.argv = [script] + args - elif args: - enable_edit = True - pathx = [] - for filename in args: - pathx.append(os.path.dirname(filename)) - for dir in pathx: - dir = os.path.abspath(dir) - if dir not in sys.path: - sys.path.insert(0, dir) - else: - dir = os.getcwd() - if not dir in sys.path: - sys.path.insert(0, dir) - # check the IDLE settings configuration (but command line overrides) - edit_start = idleConf.GetOption('main', 'General', - 'editor-on-startup', type='bool') - enable_edit = enable_edit or edit_start - enable_shell = enable_shell or not enable_edit - # start editor and/or shell windows: - root = Tk(className="Idle") - - fixwordbreaks(root) - root.withdraw() - flist = PyShellFileList(root) - macosxSupport.setupApp(root, flist) - - if enable_edit: - if not (cmd or script): - for filename in args[:]: - if flist.open(filename) is None: - # filename is a directory actually, disconsider it - args.remove(filename) - if not args: - flist.new() - if enable_shell: - shell = flist.open_shell() - if not shell: - return # couldn't open shell - - if macosxSupport.runningAsOSXApp() and flist.dict: - # On OSX: when the user has double-clicked on a file that causes - # IDLE to be launched the shell window will open just in front of - # the file she wants to see. Lower the interpreter window when - # there are open files. - shell.top.lower() - - shell = flist.pyshell - # handle remaining options: - if debug: - shell.open_debugger() - if startup: - filename = os.environ.get("IDLESTARTUP") or \ - os.environ.get("PYTHONSTARTUP") - if filename and os.path.isfile(filename): - shell.interp.execfile(filename) - if shell and cmd or script: - shell.interp.runcommand("""if 1: - import sys as _sys - _sys.argv = %r - del _sys - \n""" % (sys.argv,)) - if cmd: - shell.interp.execsource(cmd) - elif script: - shell.interp.prepend_syspath(script) - shell.interp.execfile(script) - - # Check for problematic OS X Tk versions and print a warning message - # in the IDLE shell window; this is less intrusive than always opening - # a separate window. - tkversionwarning = macosxSupport.tkVersionWarning(root) - if tkversionwarning: - shell.interp.runcommand(''.join(("print('", tkversionwarning, "')"))) - - while flist.inversedict: # keep IDLE running while files are open. - root.mainloop() - root.destroy() - -if __name__ == "__main__": - sys.modules['PyShell'] = sys.modules['__main__'] - main() |