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Getting the name of a variable as a string
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On python3, this function will get the outer most name in the stack:
import inspect
def retrieve_name(var):
"""
Gets the name of var. Does it from the out most frame inner-wards.
:param var: variable t...
Python - List of unique dictionaries
... 34, 'id': 1, 'name': 'john'}, {'age': 30, 'id': 2, 'name': 'hanna'}]
In Python3
>>> L=[
... {'id':1,'name':'john', 'age':34},
... {'id':1,'name':'john', 'age':34},
... {'id':2,'name':'hanna', 'age':30},
... ]
>>> list({v['id']:v for v in L}.values())
[{'age': 34, 'id': 1, 'nam...
Find the most common element in a list
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This breaks on Python3 if your list has different types.
– AlexLordThorsen
Feb 24 '16 at 22:47
2
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How to use a custom comparison function in Python 3?
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A complete python3 cmp_to_key lambda example:
from functools import cmp_to_key
nums = [28, 50, 17, 12, 121]
nums.sort(key=cmp_to_key(lambda x, y: 1 if str(x)+str(y) < str(y)+str(x) else -1))
compare to common object sorting:
cla...
How can I see the entire HTTP request that's being sent by my Python application?
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for Python3 see here - docs.python-requests.org/en/latest/api/?highlight=debug from http.client import HTTPConnection
– shershen
Mar 15 '18 at 11:43
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Cannot kill Python script with Ctrl-C
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Looks like in python3 you can pass daemon=True to Thread.__init__
– Ryan Haining
Aug 14 '18 at 0:57
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Get __name__ of calling function's module in Python
...k :
>>> f = sys._current_frames().values()[0]
>>> # for python3: f = list(sys._current_frames().values())[0]
>>> print f.f_back.f_globals['__file__']
'/base/data/home/apps/apricot/1.6456165165151/caller.py'
>>> print f.f_back.f_globals['__name__']
'__main__'
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Escape regex special characters in a Python string
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In python3.4, where all strings are unicode, this doesn't seem to work at all, unfortunately. Instead, print(repr("I'm stuck")[1:-1]) prints I'm stuck.
– dantiston
Mar 4 '15 at 23:42
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Adding information to an exception?
...er Error: /v1/sendEmail/
Traceback (most recent call last):
File "venv/lib/python3.4/site-packages/rest_framework/views.py", line 275, in get_permissions
return [permission() for permission in self.permission_classes]
TypeError: 'type' object is not iterable
The above exception was the direct ...
Python executable not finding libpython shared library
...ng a simple CGI script:
tail /var/log/httpd/error_log
AH01215: /opt/rh/rh-python35/root/usr/bin/python: error while loading shared libraries: libpython3.5m.so.rh-python35-1.0: cannot open shared object file: No such file or directory
I wanted a systemwide permanent solution that works for all use...