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case-insensitive list sorting, without lowercasing the result?
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In python3 you can use
list1.sort(key=lambda x: x.lower()) #Case In-sensitive
list1.sort() #Case Sensitive
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if A vs if A is not None:
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@cedbeu, in Python3 they are all much faster, but the is None test was indeed the slowest for me. In pypy they all measured exactly the same :)
– John La Rooy
Mar 25 '13 at 6:09
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Reading a huge .csv file
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here's another solution for Python3:
import csv
with open(filename, "r") as csvfile:
datareader = csv.reader(csvfile)
count = 0
for row in datareader:
if row[3] in ("column header", criterion):
doSomething(row)
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How to get a function name as a string?
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func_name doesn't exist any more in python3 so you need to use func.__name__ if you want compatibility
– Daenyth
Apr 7 '17 at 15:50
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Change IPython/Jupyter notebook working directory
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Thank you for this nice tip. I was using !cd in python3 jupyter notebook and it doesn't work but this worked
– upendra
Oct 20 '17 at 17:55
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How are POST and GET variables handled in Python?
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FieldStorage is broken in python3, you may experience issues with it. bugs.python.org/issue6234
– NuclearPeon
Oct 1 '13 at 0:09
2
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How to execute multi-line statements within Python's own debugger (PDB)
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In python3 ipdb (and pdb) have a command called interact. It can be used to:
Start an interactive interpreter (using the code module) whose global namespace contains all the (global and local) names found in the current sco...
Date ticks and rotation in matplotlib
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I just tested with python3.6 and matplotlib v2.2.2 and it works too.
– Pablo Reyes
Apr 4 '19 at 23:35
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How to check if there exists a process with a given pid in Python?
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in python3 os.kill() throws ProcessLookupError
– martinkunev
May 26 '17 at 15:15
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Why does pycharm propose to change method to static
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@Talha: self is not removed in Python3 at all.
– Junuxx
May 31 '19 at 0:08
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