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bpo-43202: More codeop._maybe_compile clean-ups (GH-24512)

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Add comment, end others with period, remove unused variables,
initialize others only when needed, and add explicit return.
This commit is contained in:
Terry Jan Reedy 2021-02-13 01:49:18 -05:00 committed by GitHub
parent 762fe7deed
commit b676f5f809
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 7 deletions
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14
Lib/codeop.py
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@ -64,24 +64,21 @@
__all__ = ["compile_command", "Compile", "CommandCompiler"]
PyCF_DONT_IMPLY_DEDENT = 0x200 # Matches pythonrun.h
PyCF_DONT_IMPLY_DEDENT = 0x200 # Matches pythonrun.h.
def _maybe_compile(compiler, source, filename, symbol):
# Check for source consisting of only blank lines and comments
# Check for source consisting of only blank lines and comments.
for line in source.split("\n"):
line = line.strip()
if line and line[0] != '#':
break # Leave it alone
break # Leave it alone.
else:
if symbol != "eval":
source = "pass" # Replace it with a 'pass' statement
err = err1 = err2 = None
code1 = code2 = None
try:
return compiler(source, filename, symbol)
except SyntaxError:
except SyntaxError: # Let other compile() errors propagate.
pass
# Catch syntax warnings after the first compile
@ -89,6 +86,7 @@ def _maybe_compile(compiler, source, filename, symbol):
with warnings.catch_warnings():
warnings.simplefilter("error")
code1 = err1 = err2 = None
try:
code1 = compiler(source + "\n", filename, symbol)
except SyntaxError as e:
@ -102,6 +100,8 @@ def _maybe_compile(compiler, source, filename, symbol):
try:
if not code1 and _is_syntax_error(err1, err2):
raise err1
else:
return None
finally:
err1 = err2 = None