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ImportError: No module named Crypto.Cipher
When I try to run app.py (Python 3.3, PyCrypto 2.6) my virtualenv keeps returning the error listed above. My import statement is just from Crypto.Cipher import AES . I looked for duplicates and you might say that there are some, but I tried the solutions (although most are not even solutions) and n...
What is the source code of the “this” module doing?
If you open a Python interpreter, and type "import this", as you know, it prints:
5 Answers
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How to percent-encode URL parameters in Python?
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Python 2
From the docs:
urllib.quote(string[, safe])
Replace special characters in string
using the %xx escape. Letters, digits,
and the characters '_.-' are never
quoted. By default, this function is
intended ...
How can I get dictionary key as variable directly in Python (not by searching from value)?
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in python 3.6: print (f"key: {key}, value: {mydictionary[key]}")
– JinSnow
Jan 24 '17 at 21:22
add a co...
Where do the Python unit tests go?
...dule.py, the unit test should normally be called test_module.py, following Pythonic naming conventions.
There are several commonly accepted places to put test_module.py:
In the same directory as module.py.
In ../tests/test_module.py (at the same level as the code directory).
In tests/test_module....
How can I sort a dictionary by key?
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Standard Python dictionaries are unordered. Even if you sorted the (key,value) pairs, you wouldn't be able to store them in a dict in a way that would preserve the ordering.
The easiest way is to use OrderedDict, which remembers the ...
How to convert wstring into string?
...y expected á and õ to work,
I know our code at work relies on this for é, which I will soon fix)
And note that code points in the range 0x80 - 0x9F in Win1252 will not work. This includes €, œ, ž, Ÿ, ...
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Best way to handle list.index(might-not-exist) in python?
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There is nothing "dirty" about using try-except clause. This is the pythonic way. ValueError will be raised by the .index method only, because it's the only code you have there!
To answer the comment:
In Python, easier to ask forgiveness than to get permission philosophy is well established,...
Converting numpy dtypes to native python types
If I have a numpy dtype, how do I automatically convert it to its closest python data type? For example,
12 Answers
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Python nonlocal statement
What does the Python nonlocal statement do (in Python 3.0 and later)?
9 Answers
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