When the program with the Matplotlib package is first run, it is told that the module is missing (as shown in the title). After searching for the survey, I found that the installation package was missing in Python's own installation, then downloaded, installed, run, and then downloaded, run, ...
If only one or two dependent modules are okay to say, but if you reach an order of magnitude, believe that no one can stand. In addition to the Python module library, most of the modules are no longer available in the Windows environment of the installation package, and the Windows environment of the decompression, installation and not so smooth in the Linux environment, to solve this problem can eliminate a lot of unnecessary trouble.
Just as the Apt-get command in Linux can be related automatically depending on dependencies, the PIP tool in Python has the same benefits. For example, the previously mentioned matplotlib issue, using PIP installation under the CMD control interface
The PIP will also be installed in the process of automatic installation, such as Six,dateuil and other modules that may not be involved in other programs.
Update the module with PIP, but note that some modules need to be uninstalled before installing the old version
Python Error: "Importerror:no module named six" to solve dependency problems with automatic installation