python Archives - Page 251 of 257

How to leave/exit/deactivate a Python virtualenv

I’m using virtualenv and the virtualenvwrapper. I can switch between virtualenv’s just fine using the workon command. me@mymachine:~$ workon env1 (env1)me@mymachine:~$ workon env2 ...

April 7, 2022
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How to know if an object has an attribute in Python

Is there a way in Python to determine if an object has some attribute? For example: >>> a = SomeClass() >>> a.someProperty = ...

April 7, 2022
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Calling a function of a module by using its name (a string)

What is the best way to go call a function, given a string with the function’s name in a Python program. For example, ...

April 7, 2022
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How to print without a newline or space

Example in C: for (int i = 0; i < 4; i++) printf("."); Output: .... In Python: >>> for i in range(4): print('.') ...

April 7, 2022
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Static class variables and methods in Python

How do I create static class variables or methods in Python? 2 25

April 7, 2022
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How do I lowercase a string in Python?

Is there a way to convert a string to lowercase? "Kilometers" → "kilometers" 5

April 7, 2022
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Find how many connected groups of nodes in a given adjacency matrix

If the input matrix is guaranteed to describe transitive connectivity, it has a peculiar form that allows for an algorithm probing only a subset of ...

April 7, 2022
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How do I sort a list of dictionaries by a value of the dictionary?

I have a list of dictionaries and want each item to be sorted by a specific value. Take into consideration the list:...

April 7, 2022
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