print: disallow **kwargs (#73)

...but add a sep=" " parameter.

Updates bazelbuild/starlark#22

1 files changed, 6 insertions, 3 deletions

diff --git a/doc/spec.md b/doc/spec.md
index 8acccdb..b8f7379 100644
--- a/doc/spec.md
+++ b/doc/spec.md
@@ -3055,14 +3055,17 @@ See also: `chr`.
 
 ### print
 
-`print(*args, **kwargs)` prints its arguments, followed by a newline.
-Arguments are formatted as if by `str(x)` and separated with a space.
+`print(*args, sep=" ")` prints its arguments, followed by a newline.
+Arguments are formatted as if by `str(x)` and separated with a space,
+unless an alternative separator is specified by a `sep` named argument.
 Keyword arguments are preceded by their name.
 
 Example:
 
 ```python
-print(1, "hi", x=3)	# "1 hi x=3\n"
+print(1, "hi")		       		# "1 hi\n"
+print("hello", "world")			# "hello world\n"
+print("hello", "world", sep=", ")	# "hello, world\n"
 ```
 
 Typically the formatted string is printed to the standard error file,