New submission from Domen Jurkovič <domen.jurko...@gmail.com>:
I've reported a stack overflow question and no reasonable explation was
offered. Here is what I've discovered:
.. code-block:: python
def func():
varName = 'bar'
varValue = 42
localVarToEvaluate = varName + ' = varValue'
try:
exec(localVarToEvaluate)
except Exception as err:
print(str(err))
if 'bar' in locals():
# print(locals()['bar']) # (1) OK
# print(bar) # (2) ERR
#print("'bar' OK:", bar) # (3) ERR
pass # uncomment any line above
func()
After ``exec()`` is executed, ``bar`` can be seen in ``locals()``, but not
accessible by intereter. Also, It can be accessed by directly calling
``print(locals()['bar'](``, but not ``print(bar)``.
This is the problem as long as the code is wrapped in function. If the same
code is placed in the module body, works as expected.
Is there any exaplanation for such behaviour, or is this a bug?
----------
components: Interpreter Core, Windows
messages: 338812
nosy: paul.moore, schperplata, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: exec() issue when used inside function
type: behavior
versions: Python 2.7, Python 3.5, Python 3.6, Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue36426>
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