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What is the difference between `sorted(list)` vs `list.sort()`?
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In general, when a python function returns None, it is a sign, that the operations are done in place, that's why, when you want to print list.sort() it returns None.
– user1767754
Nov 19 '17 at 9:34
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Find which version of package is installed with pip
...w Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe
In older versions, pip freeze and grep should do the job nicely.
$ pip freeze | grep Jinja2
Jinja2==2.7.3
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How exactly does a generator comprehension work?
...ne question here. I used next(gen_name) to get the result and it worked in Python 3. Is there any specific scenario where we need to use __next__()?
– Ankit Vashistha
May 30 '18 at 6:12
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How do I activate a virtualenv inside PyCharm's terminal?
... has nothing to do with the OP's question. The problem is terminal not the Python interpreter. The venv integration has been there way before PyCharm 4. Your answer works though.
– Sam R.
Aug 3 '15 at 17:46
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Replacing all non-alphanumeric characters with empty strings
... itself in the character range A-Z/a-z. That means special characters like é, ß etc. or cyrillic characters and such will be removed.
If the replacement of these characters is not wanted use pre-defined character classes instead:
str.replaceAll("[^\\p{IsAlphabetic}\\p{IsDigit}]", "");
PS: \...
how to return index of a sorted list? [duplicate]
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You can use the python sorting functions' key parameter to sort the index array instead.
>>> s = [2, 3, 1, 4, 5]
>>> sorted(range(len(s)), key=lambda k: s[k])
[2, 0, 1, 3, 4]
>>>
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How to get item's position in a list?
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print(testlist.index(element) if element in testlist else None)
or the "pythonic way", which I don't like so much because code is less clear, but sometimes is more efficient,
try:
print testlist.index(element)
except ValueError:
pass
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Creating a new user and password with Ansible
...st be hashed.
- hosts: all
user: root
vars:
# created with:
# python -c 'import crypt; print crypt.crypt("This is my Password", "$1$SomeSalt$")'
password: $1$SomeSalt$UqddPX3r4kH3UL5jq5/ZI.
tasks:
- user: name=tset password={{password}}
If your playbook or ansible command l...
How to use multiple arguments for awk with a shebang (i.e. #!)?
...t more standardized than the location of gawk or even worse something like python or ruby or spidermonkey.]
Which means that you cannot actually use any arguments at all.
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How to retry after exception?
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@g33kz0r the for-else construct in Python executes the else clause if the for loop doesn't break. So, in this case, that section executes if we try all 10 attempts and always get an exception.
– xorsyst
Jan 28 '15 at 11:...