Build error with option "--with-pydebug" on Mac OS 10.13.6

[chaconnewu]

BPO	34310
Nosy	@chaconnewu, @matrixise, @zhangyangyu

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-08-05.09:08:11.449>
created_at = <Date 2018-08-01.17:38:45.326>
labels = ['invalid', 'build', '3.8']
title = 'Build error with option "--with-pydebug" on Mac OS 10.13.6'
updated_at = <Date 2018-08-05.09:22:16.074>
user = 'https://github.com/chaconnewu'

bugs.python.org fields:

activity = <Date 2018-08-05.09:22:16.074>
actor = 'xiang.zhang'
assignee = 'none'
closed = True
closed_date = <Date 2018-08-05.09:08:11.449>
closer = 'matrixise'
components = ['Build']
creation = <Date 2018-08-01.17:38:45.326>
creator = 'yuwu'
dependencies = []
files = []
hgrepos = []
issue_num = 34310
keywords = []
message_count = 4.0
messages = ['322877', '323138', '323140', '323141']
nosy_count = 3.0
nosy_names = ['yuwu', 'matrixise', 'xiang.zhang']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'compile error'
url = 'https://bugs.python.org/issue34310'
versions = ['Python 3.8']

[chaconnewu]

I'm encountering a build error from the master branch of CPython (heads/master-dirty:d17fe275a3) on Mac OS 10.13.6, with "--with-pydebug" turned on.

The error message:

./python.exe -E -S -m sysconfig --generate-posix-vars ;\
if test $? -ne 0 ; then \
echo "generate-posix-vars failed" ; \
rm -f ./pybuilddir.txt ; \
exit 1 ; \
fi
Assertion failed: (TYPE(ch) == test || TYPE(ch) == test_nocond || TYPE(ch) == star_expr), function seq_for_testlist, file Python/ast.c, line 1205.
/bin/sh: line 1: 34527 Abort trap: 6 ./python.exe -E -S -m sysconfig --generate-posix-vars
generate-posix-vars failed
make: *** [pybuilddir.txt] Error 1

[zhangyangyu]

I could not find the specific commit you mentioned on master branch. Maybe you are on a customized branch(what is master-dirty)?

[matrixise]

Could you retry with a make distclean && ./configure --with-debug && make ?

To be sure.

[matrixise]

Hi Yu,

I am going to close this issue because

1. there is no master-dirty branch
2. your hash commit: d17fe275a3 does not exist in the CPython repository
3. I just downloaded the last revision of CPython and compile it on a 10.13.4 OSX and I don't have your issue.

Maybe you should clean your working directory with make distclean and restart with ./configure --with-debug && make

Thank you for your feedback, and re-open this issue if you have again the problem with the master branch.