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python ? (conditional/ternary) operator for assignments [duplicate]
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Python has such an operator:
variable = something if condition else something_else
Alternatively, although not recommended (see @karadoc's comment):
variable = (condition and something) or something_else
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Python constructor and default value [duplicate]
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This is considered the Pythonic way, but I prefer krousey's way because "special cases aren't special enough".
– Karl Knechtel
Jan 30 '11 at 9:44
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Complex numbers usage in python [closed]
I'm a math newbie. Now I'm getting deeper into Python data types. I can't understand how to use a complex number. Please give me examples of usage of complex numbers in Python.
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Why doesn't calling a Python string method do anything unless you assign its output?
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This is because strings are immutable in Python.
Which means that X.replace("hello","goodbye") returns a copy of X with replacements made. Because of that you need replace this line:
X.replace("hello", "goodbye")
with this line:
X = X.replace("hello", "goodbye"...
How do I write a Python dictionary to a csv file? [duplicate]
...want to check out the with statement for opening files. It's not only more pythonic and readable but handles closing for you, even when exceptions occur.
Example with these changes made:
import csv
my_dict = {"test": 1, "testing": 2}
with open('mycsvfile.csv', 'wb') as f: # Just use 'w' mode in...
Calling filter returns [duplicate]
I am learning the concept of filters in Python. I am running a simple code like this.
2 Answers
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Python if-else short-hand [duplicate]
I want to do the following in python:
2 Answers
2
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Python assigning multiple variables to same value? list behavior
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If you're coming to Python from a language in the C/Java/etc. family, it may help you to stop thinking about a as a "variable", and start thinking of it as a "name".
a, b, and c aren't different variables with equal values; they're different na...
How to safely open/close files in python 2.4
I'm currently writing a small script for use on one of our servers using Python. The server only has Python 2.4.4 installed.
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Getting name of windows computer running python script?
...ly, I have a couple Windows computers on my network that will be running a python script. A different set of configuration options should be used in the script depending on which computer is running this script.
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