ImportError: No module named 'Crypto'

问题

I am working with pycrypto. It works fine on my local windows machine, but when I move it to my python box I get an error with importing the module:

from Crypto.Cipher import ARC4 
ImportError: No module named 'Crypto'

The output of python3.3 -c "from Crypto.Cipher import ARC4"

Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named 'Crypto'

output of pip3 list has a reference includes pycrypto (2.6.1)

I know it works with Python 2.7.6, but I wrote the script in 3.3 so it depends on some things from 3.3

回答1:

I am assuming that your "python box" is a remote computer.

First, make sure pycrypto is up to date (pip3 install --upgrade pycrypto). The older versions may not be compatible with python 3.3

If that doesn't work, try looking in site-packages (the directory) to make sure the functions actually exist.

If none of that works, it might be easier (just a suggestion) to use from future import the things you need. That way it is python 2&3 compatible.

回答2:

As I already wrote in this answer:

WARNING: Don't use pycrypto anymore!

Use pycryptodome instead, via pip3 install pycryptodome.

But make sure that you don't have pycrypto installed, because both packages install under the same folder Crypto.

来源：https://stackoverflow.com/questions/28355385/importerror-no-module-named-crypto