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# This script lists the names of standard library modules
# to update Python/stdlib_mod_names.h
import os.path
import re
import subprocess
import sys
import sysconfig
SRC_DIR = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
STDLIB_PATH = os.path.join(SRC_DIR, 'Lib')
MODULES_SETUP = os.path.join(SRC_DIR, 'Modules', 'Setup')
SETUP_PY = os.path.join(SRC_DIR, 'setup.py')
TEST_EMBED = os.path.join(SRC_DIR, 'Programs', '_testembed')
IGNORE = {
'__init__',
'__pycache__',
'site-packages',
# Test modules and packages
'__hello__',
'__phello__',
'_ctypes_test',
'_testbuffer',
'_testcapi',
'_testconsole',
'_testimportmultiple',
'_testinternalcapi',
'_testmultiphase',
'_xxsubinterpreters',
'_xxtestfuzz',
'distutils.tests',
'idlelib.idle_test',
'lib2to3.tests',
'test',
'xxlimited',
'xxlimited_35',
'xxsubtype',
}
# Windows extension modules
WINDOWS_MODULES = (
'_msi',
'_overlapped',
'_testconsole',
'_winapi',
'msvcrt',
'nt',
'winreg',
'winsound'
)
# Pure Python modules (Lib/*.py)
def list_python_modules(names):
for filename in os.listdir(STDLIB_PATH):
if not filename.endswith(".py"):
continue
name = filename.removesuffix(".py")
names.add(name)
# Packages in Lib/
def list_packages(names):
for name in os.listdir(STDLIB_PATH):
if name in IGNORE:
continue
package_path = os.path.join(STDLIB_PATH, name)
if not os.path.isdir(package_path):
continue
if any(package_file.endswith(".py")
for package_file in os.listdir(package_path)):
names.add(name)
# Extension modules built by setup.py
def list_setup_extensions(names):
cmd = [sys.executable, SETUP_PY, "-q", "build", "--list-module-names"]
output = subprocess.check_output(cmd)
output = output.decode("utf8")
extensions = output.splitlines()
names |= set(extensions)
# Built-in and extension modules built by Modules/Setup
def list_modules_setup_extensions(names):
assign_var = re.compile("^[A-Z]+=")
with open(MODULES_SETUP, encoding="utf-8") as modules_fp:
for line in modules_fp:
# Strip comment
line = line.partition("#")[0]
line = line.rstrip()
if not line:
continue
if assign_var.match(line):
# Ignore "VAR=VALUE"
continue
if line in ("*disabled*", "*shared*"):
continue
parts = line.split()
if len(parts) < 2:
continue
# "errno errnomodule.c" => write "errno"
name = parts[0]
names.add(name)
# List frozen modules of the PyImport_FrozenModules list (Python/frozen.c).
# Use the "./Programs/_testembed list_frozen" command.
def list_frozen(names):
args = [TEST_EMBED, 'list_frozen']
proc = subprocess.run(args, stdout=subprocess.PIPE, text=True)
exitcode = proc.returncode
if exitcode:
cmd = ' '.join(args)
print(f"{cmd} failed with exitcode {exitcode}")
sys.exit(exitcode)
for line in proc.stdout.splitlines():
name = line.strip()
names.add(name)
def list_modules():
names = set(sys.builtin_module_names) | set(WINDOWS_MODULES)
list_modules_setup_extensions(names)
list_setup_extensions(names)
list_packages(names)
list_python_modules(names)
list_frozen(names)
# Remove ignored packages and modules
for name in list(names):
package_name = name.split('.')[0]
# package_name can be equal to name
if package_name in IGNORE:
names.discard(name)
for name in names:
if "." in name:
raise Exception("sub-modules must not be listed")
return names
def write_modules(fp, names):
print("// Auto-generated by Tools/scripts/generate_stdlib_module_names.py.",
file=fp)
print("// List used to create sys.stdlib_module_names.", file=fp)
print(file=fp)
print("static const char* _Py_stdlib_module_names[] = {", file=fp)
for name in sorted(names):
print(f'"{name}",', file=fp)
print("};", file=fp)
def main():
if not sysconfig.is_python_build():
print(f"ERROR: {sys.executable} is not a Python build",
file=sys.stderr)
sys.exit(1)
fp = sys.stdout
names = list_modules()
write_modules(fp, names)
if __name__ == "__main__":
main()
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