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Check if an apt-get package is installed and then install it if it's not on Linux
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echo $?
sudo apt remove -y "$pkg"
dpkg -s "$pkg"
echo $?
ls -l /usr/lib/python3/dist-packages/certbot/reporter.py
sudo apt remove --purge certbot
dpkg -s "$pkg"
echo $?
ls -l /usr/lib/python3/dist-packages/certbot/reporter.py
then:
the first two echo $? output 0, only the third one outputs 1...
How do I copy a file in Python?
How do I copy a file in Python?
16 Answers
16
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How can I distribute python programs?
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The normal way of distributing Python applications is with distutils. It's made both for distributing library type python modules, and python applications, although I don't know how it works on Windows. You would on Windows have to install Python separatel...
Problems with pip install numpy - RuntimeError: Broken toolchain: cannot link a simple C program
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For Docker (Alpine) and Python 3.x this worked for me:
RUN apk update
RUN apk add make automake gcc g++ subversion python3-dev
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Import a file from a subdirectory?
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Take a look at the Packages documentation (Section 6.4) here: http://docs.python.org/tutorial/modules.html
In short, you need to put a blank file named
__init__.py
in the "lib" directory.
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deciding among subprocess, multiprocessing, and thread in Python?
I'd like to parallelize my Python program so that it can make use of multiple processors on the machine that it runs on. My parallelization is very simple, in that all the parallel "threads" of the program are independent and write their output to separate files. I don't need the threads to exchan...
Is there a portable way to get the current username in Python?
Is there a portable way to get the current user's username in Python (i.e., one that works under both Linux and Windows, at least). It would work like os.getuid :
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Find full path of the Python interpreter?
How do I find the full path of the currently running Python interpreter from within the currently executing Python script?
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In-memory size of a Python structure
Is there a reference for the memory size of Python data stucture on 32- and 64-bit platforms?
7 Answers
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Format floats with standard json module
I am using the standard json module in python 2.6 to serialize a list of floats. However, I'm getting results like this:
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