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How to define a two-dimensional array?
...ou have to first initialize the outer list with lists before adding items; Python calls this
"list comprehension".
# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5;
Matrix = [[0 for x in range(w)] for y in range(h)]
You can now add items to the list:
Matrix[0][0] =...
Delete last char of string
...blem should not exist if you dont create a trailing char. Check @Øyvind Bråthen solution if you are in OP's boat.
– aloisdg moving to codidact.com
Jun 6 '18 at 9:48
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Pandas convert dataframe to array of tuples
... @johnDanger it's similar to the concept of eval() and globals() in python. Everyone knows they exist. Everyone also knows you typically shouldn't use these functions because it's considered bad form. The principle here is similar, there are very few cases to use the iter* family in pandas, t...
Convert two lists into a dictionary
...rwise dict constructor and zip function are awesomely useful: https://docs.python.org/3/library/functions.html#func-dict
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Is there an easy way to request a URL in python and NOT follow redirects?
...ou to access headers both in the canonical form and in lowercase. See docs.python-requests.org/en/master/user/quickstart/…
– Marian
May 12 '17 at 7:21
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Is there a minlength validation attribute in HTML5?
... Aug 12 '13 at 11:02
Ali ÇarıkçıoğluAli Çarıkçıoğlu
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It is more efficient to use if-return-return or if-else-return?
...code has to perform a jump if the if condition is false anyway.
Note that Python supports a syntax that allows you to use only one return statement in your case:
return A+1 if A > B else A-1
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Getting MAC Address
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Python 2.5 includes an uuid implementation which (in at least one version) needs the mac address. You can import the mac finding function into your own code easily:
from uuid import getnode as get_mac
mac = get_mac()
The ...
“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
...c can't decode byte 0xd0 in position 32: invalid continuation byte. I used python 3.6.5 to install aws cli. And when I tried aws --version it failed with this error. So I had to edit /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py and changed the code to the following...
Git - How to fix “corrupted” interactive rebase?
...e same issue, but with Sublime Text for me.
– Toivo Säwén
Jan 19 at 18:43
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