I have installed Python 2.5.4, Numpy 1.5.0 win32, Matplotlib 1.0.0 win32, pywin32 218. Still not able to plot graphs in Python. Here is the error I am getting :
import pylab File "C:Python25libsite-packagespylab.py", line 1, in <module> from matplotlib.pylab import * File "C:Python25libsite-packagesmatplotlibpylab.py", line 216, in <module> from matplotlib import mpl # pulls in most modules File "C:Python25libsite-packagesmatplotlibmpl.py", line 1, in <module> from matplotlib import artist File "C:Python25libsite-packagesmatplotlibartist.py", line 6, in <module> from transforms import Bbox, IdentityTransform, TransformedBbox, TransformedPath File "C:Python25libsite-packagesmatplotlibtransforms.py", line 34, in <module> from matplotlib._path import affine_transform ImportError: DLL load failed: The specified module could not be found.
Please kindly help..
(I found this answer from a video: http://www.youtube.com/watch?v=xmvRF7koJ5E)
msvcr71.dllfrom the web.
Save them to your
Save them to your
C:WindowsSysWOW64folder as well (if you have a 64-bit operating system).
Now try running your code file in Python and it will load the graph in couple of seconds.
I had the same issue with importing matplotlib.pylab with Python 3.5.1 on Win 64. Installing the Visual C++ Redistributable für Visual Studio 2015 from this links: https://www.microsoft.com/en-us/download/details.aspx?id=48145 fixed the missing DLLs.
I find it better and easier than downloading and pasting DLLs.
To make it short, it means that you lacked some “dependencies” for the libraries you wanted to use. Before trying to use any kind of library, first it is suggested to look up whether it needs another library in python “family”. What do I mean?
Downloading “dlls” is something that I avoid. I had the same problem with another library “kivy”. The problem occurred when I wanted to use Python 3.4v instead of 3.5 Everything was working correctly in 3.5 but I just wanted to use the stable version for kivy which is 3.4 as they officially “advise”. So, I switched to 3.4 but then I had the very same “dll” error saying lots of things are missing. So I checked the website and learned that I needed to install extra “dependencies” from the official website of kivy, then the problem got solved.
Quick note: Check if you have other Python versions, if you have removed them, make sure you did that right. If you have Miniconda on your system then Python will not be removed easily.
What worked for me: removed other Python versions and the Miniconda, reinstalled Python and the matplotlib library and everything worked great.
Installing the Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019 worked for me with a similar problem, and helped with another (slightly different) driver issue.
Windows 10 x64 and
Open a Visual Studio x64 command prompt, and use dumpbin:
dumpbin /dependents [Python Module DLL or PYD file]
If you do not have Visual Studio installed, it is possible to download dumpbin elsewhere, or use another utility such as Dependency Walker.
Note that all other answers (to date) are simply random stabs in the dark, whereas this method is closer to a sniper rifle with night vision.
Case study 1
I switched on Address Sanitizer for a Python module that I wrote using C++ using MSVC and CMake.
It was giving this error:
ImportError: DLL load failed: The specified module could not be found
Opened a Visual Studio x64 command prompt.
Under Windows, a
.pydfile is a
.dllfile in disguise, so we want to run dumpbin on this file.
dumpbin /dependents MyLibrary.cp37-win_amd64.pydwhich prints this:
Microsoft (R) COFF/PE Dumper Version 14.27.29112.0 Copyright (C) Microsoft Corporation. All rights reserved. Dump of file MyLibrary.cp37-win_amd64.pyd File Type: DLL Image has the following dependencies: clang_rt.asan_dbg_dynamic-x86_64.dll gtestd.dll tbb_debug.dll python37.dll KERNEL32.dll MSVCP140D.dll VCOMP140D.DLL VCRUNTIME140D.dll VCRUNTIME140_1D.dll ucrtbased.dll Summary 1000 .00cfg D6000 .data 7000 .idata 46000 .pdata 341000 .rdata 23000 .reloc 1000 .rsrc 856000 .text
clang_rt.asan_dbg_dynamic-x86_64.dll, copied it into the same directory, problem solved.
Alternatively, could update the environment variable PATH to point to the directory with the missing .dll.
Please feel free to add your own case studies here! I’ve made it a community wiki answer.