Improve Python 2 only syntax detection #2592
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First of all this fixes a mistake I made in Python 2 deprecation PR
using token.* to check for print/exec statements. Turns out that
for nodes with a type value higher than 256 its numeric type isn't
guaranteed to be constant. Using syms.* instead fixes this.
Also add support for the following cases:
print "hello, world!"
exec "print('hello, world!')"
def set_position((x, y), value):
pass
try:
pass
except Exception, err:
pass
raise RuntimeError, "I feel like crashing today :p"
`wow_these_really_did_exist`
10L
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
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JelleZijlstra
approved these changes
Nov 8, 2021
|
Thank you! |
|
cc @Zac-HD Traceback (most recent call last):
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesmith/syntactic.py", line 110, in draw_symbol
compile(
SystemError: Negative size passed to PyUnicode_New
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/runner/work/black/black/fuzz.py", line 73, in <module>
test_idempotent_any_syntatically_valid_python()
File "/home/runner/work/black/black/fuzz.py", line 20, in test_idempotent_any_syntatically_valid_python
max_examples=1000, # roughly 1k tests/minute, or half that under coverage
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesis/core.py", line 1199, in wrapped_test
raise the_error_hypothesis_found
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesmith/syntactic.py", line 89, in do_draw
result = super().do_draw(data)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesis/extra/lark.py", line 153, in do_draw
self.draw_symbol(data, start, state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesmith/syntactic.py", line 107, in draw_symbol
super().draw_symbol(data, symbol, draw_state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesis/extra/lark.py", line 181, in draw_symbol
self.draw_symbol(data, e, draw_state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesmith/syntactic.py", line 107, in draw_symbol
super().draw_symbol(data, symbol, draw_state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesis/extra/lark.py", line 181, in draw_symbol
self.draw_symbol(data, e, draw_state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesmith/syntactic.py", line 107, in draw_symbol
super().draw_symbol(data, symbol, draw_state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesis/extra/lark.py", line 181, in draw_symbol
self.draw_symbol(data, e, draw_state)
File "/home/runner/work/black/black/.tox/fuzz/lib/python3.9/site-packages/hypothesmith/syntactic.py", line 129, in draw_symbol
raise type(err)(
SystemError: compile('delA\\ \n#\n', '<string>', 'single') raised SystemError: Negative size passed to PyUnicode_Newhttps://github.com/psf/black/runs/4184619816?check_suite_focus=true#step:5:85 Seems like the fuzz issue might be related to https://bugs.python.org/issue45738. Anyhow we can't do anything about it ourselves :) |
|
Thanks, Zac-HD/hypothesmith#16 is open and I guess I'm adding another workaround for an upstream bug. |
JelleZijlstra
added a commit
that referenced
this pull request
Nov 16, 2021
* Improve Python 2 only syntax detection
First of all this fixes a mistake I made in Python 2 deprecation PR
using token.* to check for print/exec statements. Turns out that
for nodes with a type value higher than 256 its numeric type isn't
guaranteed to be constant. Using syms.* instead fixes this.
Also add support for the following cases:
print "hello, world!"
exec "print('hello, world!')"
def set_position((x, y), value):
pass
try:
pass
except Exception, err:
pass
raise RuntimeError, "I feel like crashing today :p"
`wow_these_really_did_exist`
10L
* Add octal support, more test cases, and fixup long ints
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
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Description
First of all this fixes a mistake I made in Python 2 deprecation PR
using token.* to check for print/exec statements. Turns out that
for nodes with a type value higher than 256 its numeric type isn't
guaranteed to be constant. Using syms.* instead fixes this.
Also add support for the following cases:
This should also fix the Python 2 related failures in #2586.
Checklist - did you ...