from matplotlib import ft2font: “ImportError: DLL load failed: The specified procedure could not be found.”

Question

I have Windows 7.

For some reason, f2tfont.cpp does not compile when installing matplotlib (through pip ), hence, the matplotlib install fails. Also, the matplotlib installer cannot find a Python installation.

See comments here for further details on the problem.

Answer 1

These following commands worked for me. I think problem is with the new matplotlib version 3.3.1. I downgraded to matplotlib 3.0.3.

I uninstalled the newer version, then reopen command prompt and installed matplotlib 3.0.3. It's worked for me. I am not sure if it will work for you, so I recommend to check out the discussion .

pip uninstall matplotlib
pip install matplotlib==3.0.3

Answer 2

This solves my problem

As a workaround until matplotlib 3.1.1 is released, you could install this package msvc-runtime using the following command:

pip install msvc-runtime

Answer 3

This worked for me on Windows 10 (using the Anaconda prompt):

pip uninstall matplotlib
pip install --upgrade matplotlib

Answer 4

As specified in PEP 11, a Python release only supports a Windows platform while Microsoft considers the platform under extended support. This means that Python 3.7 supports Windows Vista and newer. If you require Windows XP support then please install Python 3.4.

1. For Python 3.6+ you need to have Windows Service Pack 1 installed.

In case Windows Service Pack isn't installed. You can download Windows 7 Service Pack 1 (SP1) manually from here or also you can download it from Windows Update of Windows 7.

2. Python needs the Microsoft C runtime for Visual Studio 2015 , especially the file ucrtbase.dll .
   
   

So, you need to install Microsoft Visual C++ redistribution 2015 from here .

You don't need to install Microsoft Visual Studio just C++ redistributions of 2015 will do the job.

Answer 5

You need to have Visual Studio c++ in Your System.

Install Visual Studio 2019 with c++ distributions .

It worked perfectly for me.

Answer 6

这在 Windows 10 上对我有用：

pip install matplotlib==3.2.1

Answer 7

If you get this error by just importing matplotlib, you probably have a botched matplotlib installation. Did you compile it yourself (which I find very hard to do) or did you use a binary installer from the official page (which works like a charm, as long as you installed the dependencies beforehand)?

DO NOT USE pip for installing matplotlib and numpy, but use it for all other dependencies. This may change in the future as soon as wheels arecoming out for matplotlib.

Python console output on a Windows box:

>>> matplotlib.__version__
'1.3.1'
>>> from matplotlib import ft2font
>>>

Answer 8

I had this issue and then uninstalled and reinstalled conda, and updated all packages through conda. But the issue persisted. I then did a conda uninstall of the offending package (in my case, this error appeared for both matplotlib and h5py), and then pip installed them. This seemed to have fixed the issue. Strangely, it would only give this error through the console. When run through a Jupyter notebook, I didn't see this error. Must be some difference between IPython and python.

Answer 9

None of above solutions worked for me! Try this:

pip uninstall matplotlib
pip install -U matplotlib==3.2.0rc1

Answer 10

I am running windows 7 with Python version 3.7.1 and Pip version 19.1.1

I needed to install Microsoft visual studio. Microsoft visual studio is needed for the kiwisolver that is installed with matplotlib using pip. It is free but a 4MB download took over one to two hours to get on my machine and installed.

After using pip to install matplotlib , but without visual studio on my machine, running my script with

import matplotlib.pyplot as plt

the error I had was:

import matplotlib ImportError: DLL load failed: The specified procedure could not be found

After installing visual studio everything worked great!

Get Microsoft visual studio here .

Answer 11

如果每次尝试通过 jupyter 在你的电脑上安装 matplotlib 时都遇到错误，只需下载 ccleaner，然后在安装后单击健康检查图标，然后自定义清理以检查导致问题的重复文件，然后返回通过输入pip install matplotlib通过 anaconda 命令提示符pip install matplotlib

Answer 12

对我来说，我通过卸载 python 3.8 并安装了 python 3.5 解决了这个问题

Answer 13

只需安装“Microsoft Visual C++ Redistributable”