[issue42050] ensurepip fails if cwd contains illformed setup.cf
Jan Christoph added the comment: Just wanted to say, I ran into this while using direnv. See the issue I opened before knowing of this one: https://bugs.python.org/issue43038 -- nosy: +con-f-use Added file: https://bugs.python.org/file49779/shell-session.txt ___ Python tracker <https://bugs.python.org/issue42050> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue43038] ensurepip: tries to use setup.py/setup.cfg
New submission from Jan Christoph : Running python3 -Im ensurepip --upgrade --default-pip in a directory that contains a setup.cfg / setup.py combination, caused ensurepip to try and use these files, leading to distutils.errors.DistutilsOptionError: error in setup.cfg: command 'build' has no such option 'icons' A full shell session is attached that contains details on the exact files and python version involved involved. I was under the impression ensurepip simply ensured that a suitable version of pip is installed with my Python distribution in use. -- components: Library (Lib) files: shell-session.txt messages: 385767 nosy: con-f-use priority: normal severity: normal status: open title: ensurepip: tries to use setup.py/setup.cfg type: behavior versions: Python 3.8, Python 3.9 Added file: https://bugs.python.org/file49768/shell-session.txt ___ Python tracker <https://bugs.python.org/issue43038> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27793] Double underscore variables in module are mangled when used in class
Jan Christoph added the comment: In particular, this might conflict with the documentation of global, which states: > If the target is an identifier (name): > >If the name does not occur in a global statement in the current code > block: the name is bound to the object in the current local namespace. > >Otherwise: the name is bound to the object in the current global namespace. There is no exception of names that are within the body of a class object and start (but not end) with double underscores. -- ___ Python tracker <https://bugs.python.org/issue27793> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27793] Double underscore variables in module are mangled when used in class
Jan Christoph added the comment: Just because it is documented, doesn't mean it's not a bug or illogical and unexpected. -- ___ Python tracker <https://bugs.python.org/issue27793> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27793] Double underscore variables in module are mangled when used in class
Jan Christoph added the comment:
I would argue to reopen this. Seeing I and other people run into that issue
(e.g. https://stackoverflow.com/q/40883083/789308) quiet frequently.
Especially since it breaks the `global` keyword, e.g.:
__superprivate = "mahog"
class AClass(object):
def __init__(self, value):
global __superprivate
__superprivate = value
@staticmethod
def get_sp():
return __superprivate
if __name__ == "__main__":
print(__superprivate) # mahog
try:
print(AClass.get_sp())
except NameError as e:
print(e) # NameError: name '_AClass__superprivate' is not
defined'
cl = AClass("bla")
print(cl.get_sp()) # bla
__superprivate = 1
print(cl.get_sp()) # bla
print(AClass.get_sp()) # bla
--
nosy: +con-f-use
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[issue34076] Nested loop in dictionary comprehension gives `global name not defined` inside class
Jan Christoph added the comment: Updated example with reversed variable order for reference. This really seems to be related to issue3692, but really not the same thing. IMHO both `a` and `b` should be passed in a situation like this: a = range(5) b = range(3) c = [x+y for x in a for y in b] -- Added file: https://bugs.python.org/file47681/what_a_dict.py ___ Python tracker <https://bugs.python.org/issue34076> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue34076] Nested loop in dictionary comprehension gives `global name not defined` inside class
Jan Christoph added the comment:
Okay, so we're a in another scope inside the dictionary comprehension (all
comprehensions for that matter), and only one symbol is passed to the inside.
That's why `strange_reversed_working = {x+s.replace('(+/-)',''):None for x in
infts.split(', ') for s in ('+','-','')}` functions, but if you reverse the
order it does not. That's a real trap.
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[issue34076] Nested loop in dictionary comprehension gives `global name not defined` inside class
Jan Christoph added the comment:
But the simpler dictionary compprehension `{s.replace('(+/-)',''):None for s in
infts.split(', ')}` works perfectly. Shouldn't that also give the error if it
was a scope issue?
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[issue34076] Nested loop in dictionary comprehension gives `global name not defined` inside class
New submission from Jan Christoph :
The python code:
```
class _tri(object):
infts = '(+/-)inf, (+/-)infty, (+/-)infinity'
strange_failing = {x+s.replace('(+/-)',''):None for x in ('+','-','') for s
in infts.split(', ')}
```
gives a `global name 'infts' is not defined` exception, when normal dictionary
comprehensions (without nested loops) and regular nested for-loops work
perfectly well.
For a complete shell session and more illustrative example in versions 2.7.15
and 3.6.4 see: https://pastebin.ubuntu.com/p/9Pg8DThbsd/
--
components: Interpreter Core
files: what_a_dict.py
messages: 321326
nosy: con-f-use
priority: normal
severity: normal
status: open
title: Nested loop in dictionary comprehension gives `global name not defined`
inside class
type: behavior
versions: Python 2.7
Added file: https://bugs.python.org/file47678/what_a_dict.py
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