I'm trying to install a python package (specifically pandas) into Visual Studio code on a chromebook's linux virtual machine. I've tried many different things but none of them seem to work: trying to use pip install pandas results in bash: pip: command not found. I have no idea where the actual python interpreter is located, so I can't go to the source. I thought it was that I wasn't using the correct terminal, but the only other option is JavaScript Debug Terminal. What am I doing wrong? Is it even possible?
Pip is a python package management tool, which provides the functions of finding, downloading, installing and uninstalling Python packages. However, this tool is not included in the system and needs to be installed manually. Here is the official website of PIP, which contains installation instructions.
I want to use the face recognition module of python in a project but when I am trying to install it using the command "pip install face_recognition" or "pip install face-recognition", it is showing an error and is not installing. This is the screenshot of the error:
How to fix this error and install the module?
Thanks in advance!
You should install a C++ compiler. I would suggest Visual Studio C++.
This is because the face_recognition package does not have prebuilt wheels for your platform and therefore you need to build them yourself when you install.
Anyhow just installing C++ build tolls will be sufficient.
Verify your installation
cl
And then re-run
pip install face_recognition
Face-recognition python module uses C++, so your computer needs somehow to compile the library it is using. Install any of the C++ compilers (for example minGW) & be sure is that compiler executable is added to your global PATH. After that try to install face-recognition library.
If the step above does not work - try using python 32-bit build (once I have encountered this error because my python build was 64-bit). It may help in some of the cases.
Use python version == 3.7 (any other versions does not compatible with face-recognition module)
Install dlib dependency and try to use conda for installing & manipulating environments.
P.S. you need to install C++ compiler, not Visual Studio itself. Visual studio is an IDE, while compiler is not.
I uncompress Embed Python, download pip wheel extract it and put to lib\site-packages. Next run python -m pip install pywin32. So far so god. But when running program it fails to load pywin32file.pyd. With dependency walker I checked and realized it is x86 architecture while running x64 Python. I tried with x64 downloaded version of pywin32 wheel file and got error "Unsupported platform". pip installed x86 wheel but is is not correct.
At the end, I unzipped x64 version of pywin32 wheel into lib\site-packages. Two dlls from pywin32_system32 copied to dll search path and it works now.
We are distributing Embed Python with handful of libraries and pip is god way to get them.
What causes wrong architecture detection by pip and how to solve problem?
The problem you encountered may have had a different cause to my issue, but I was able to resolve a similar problem with pip installing 32-bit packages on 64-bit Python by changing my VSCMD_ARG_TGT_ARCH environment variable from x86 (which seems to be the default setting if you are using the Visual Studio Developer Command Prompt or anything that relies on it) to x86_64.
This seems to be a bug in packaging that was just fixed this April, so, as of this writing, the fix may not have yet made its way into pip.
I'trying to update spacy from version 2.0.18 to version 2.1.1.
But every time I try to run the command
pip install spacy-nightly
or
pip install -U spacy==2.1.1
I just get
error: [WinError 2] System cannot find file specified
msvc
py_compiler msvc
with a lot of unreadable output.
Now I figured it has something to do with the C++ compiler spacy uses and I installed like every package I found at the Microsoft Visual Website but my problem didnt solve itself.
I really would appreciate some help!
Most probably, you are on a 64-bit machine using a 32-bit python executable.
Remove the 32-bit version of python and Install the 64 bit version of python it will work.
If you where working within a virtualenv, then delete the virtualenv and recreate it again after installing the 64-bit of python.
I found out that it's impossible to install NumPy/SciPy via installers on Windows 64-bit, that's only possible on 32-bit. Because I need more memory than a 32-bit installation gives me, I need the 64-bit version of everything.
I tried to install everything via Pip and most things worked. But when I came to SciPy, it complained about missing a Fortran compiler. So I installed Fortran via MinGW/MSYS. But you can't install SciPy right away after that, you need to reinstall NumPy. So I tried that, but now it doesn't work anymore via Pip nor via easy_install. Both give these errors:
There are a lot of errors about LNK2019 and LNK1120,.
I get a lot of errors in the range of C: C2065,C2054,C2085,C2143`, etc. They belong together I believe.
There is no Fortran linker found, but I have no idea how to install that, can't find anything on it.
And many more errors which are already out of the visible part of my cmd-windows...
The fatal error is about LNK1120:
build\lib.win-amd64-2.7\numpy\linalg\lapack_lite.pyd : fatal error LNK1120: 7 unresolved externals
error: Setup script exited with error: Command "C:\Users\me\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\amd64\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:C:\BLAS /LIBPATH:C:\Python27\libs /LIBPATH:C:\Python27\PCbuild\amd64 /LIBPATH:build\temp.win-amd64-2.7 lapack.lib blas.lib /EXPORT:initlapack_lite build\temp.win-amd64-2.7\Release\numpy\linalg\lapack_litemodule.obj /OUT:build\lib.win-amd64-2.7\numpy\linalg\lapack_lite.pyd /IMPLIB:build\temp.win-amd64-2.7\Release\numpy\linalg\lapack_lite.lib /MANIFESTFILE:build\temp.win-amd64-2.7\Release\numpy\linalg\lapack_lite.pyd.manifest" failed with exit status 1120
What is the correct way to install the 64-bit versions NumPy and SciPy on a 64-bit Windows machine? Did I miss anything? Do I need to specify something somewhere? There is no information for Windows on these problems that I can find, only for Linux or Mac OS X, but they don't help me as I can't use their commands.
You can install scipy and numpy using their wheels.
First install wheel package if it's already not there...
pip install wheel
Just select the package you want from http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy
Example: if you're running python3.5 32 bit on Windows choose scipy-0.18.1-cp35-cp35m-win_amd64.whl then it will automatically download.
Then go to the command line and change the directory to the downloads folder and install the above wheel using pip.
Example:
cd C:\Users\[user]\Downloads
pip install scipy-0.18.1-cp35-cp35m-win_amd64.whl
EDIT: The Numpy project now provides pre-compiled packages in the wheel format (package format enabling compiled code as binary in packages), so the installation is now as easy as with other packages.
Numpy (as also some other packages like Scipy, Pandas etc.) includes lot's of C-, Cython, and Fortran code that needs to be compiled properly, before you can use it. This is, btw, also the reason why these Python-packages provide such fast Linear Algebra.
To get precompiled packages for Windows, have a look at Gohlke's Unofficial Windows Binaries or use a distribution like Winpython (just works) or Anaconda (more complex) which provide an entire preconfigured environment with lots of packages from the scientific python stack.
Installing with pip
You can install the numpy and scipy wheels on Windows with pip in one step if you use the appropriate link from Gohlke's Unofficial Windows Binaries (mentioned by sebix) and run the Windows command prompt as Administrator. For example, in Python 3.5, you would simply use something like this:
# numpy-1.9.3+mkl for Python 3.5 on Win AMD64
pip3.5 install http://www.lfd.uci.edu/~gohlke/pythonlibs/xmshzit7/numpy-1.9.3+mkl-cp35-none-win_amd64.whl
# scipy-0.16.1 for Python 3.5 on Win AMD64
pip3.5 install http://www.lfd.uci.edu/~gohlke/pythonlibs/xmshzit7/scipy-0.16.1-cp35-none-win_amd64.whl
Best solution for this is to download and install VCforPython2.7 from https://www.microsoft.com/en-us/download/details.aspx?id=44266
Then try pip install numpy
Downloading the binaries for 64-bit from http://www.lfd.uci.edu/~gohlke/pythonlibs/, and installing it directly with pip in this order:
pip install numpy-1.12.0+mkl-cp36-cp36m-win64.whl
pip install scipy-0.18.1-cp36-cp36m-win64.whl
pip install matplotlib-2.0.0-cp36-cp36m-win64.whl
Note that you must place command prompt in the folder where you put the .whl files after downloading them, and you must run it as administrator,
worked for me on Windows 10 64-bit now python is up and running.
You can now pip install numpy on Windows!
"Note: this page has only historical relevance, you can now pip-install for windows"
Source: https://github.com/numpy/numpy/wiki/Whats-with-Windows-builds
Intel provides pre-compiled Python modules for free in their "Intel Distribution for Python". The modules are compiled against Intel's MKL (Math Kernel Library) and thus optimized for faster performance. The package includes NumPy, SciPy, scikit-learn, pandas, matplotlib, Numba, tbb, pyDAAL, Jupyter, and others. Find more information and the download link here
If you are on windows , you wouldn't need wheel anyway! You can directly install package by downloading the 32-bit package as win32 from this link [http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy] and then move that downloaded package to cmd's current directory and open cmd and write following codepip install numpy-1.13.1+mkl-cp36-cp36m-win32.whl then do it same for scipy
For 64-bit you need to install mingw-w64 as it is gcc and compiles numpy and scipy as precompiled status.
Currently it works fine with 32-bit.So I had opted for win32 package both for numpy+mkl and scipy in that link.
Hope This works! Give a try
You can download the needed packages from here and use pip install "Abc.whl" from the directory where you have downloaded the file.
Look into python wheels to solve your problem. The best part of python wheels is that they let you install C extensions with no compilers. I just installed numpy and scipy using pip in a clean python install and they both worked fine.
for python 3.6, the following worked for me
launch cmd.exe as administrator
pip install numpy-1.13.0+mkl-cp36-cp36m-win32
pip install scipy-0.19.1-cp36-cp36m-win32
Package version are very important.
I found some stable combination that works on my Windows10 64 bit machine:
pip install numpy-1.12.0+mkl-cp36-cp36m-win64.whl
pip install scipy-0.18.1-cp36-cp36m-win64.whl
pip install matplotlib-2.0.0-cp36-cp36m-win64.whl
Source.
Hey I had the same issue.
You can find all the packages in the link below:
http://www.lfd.uci.edu/~gohlke/pythonlibs/#scikit-learn
And choose the package you need for your version of windows and python.
You have to download the file with whl extension. After that, you will copy the file into your python directory then run the following command:
py -3.6 -m pip install matplotlib-2.1.0-cp36-cp36m-win_amd64.whl
Here is an example when I wanted to install matplolib for my python 3.6 https://www.youtube.com/watch?v=MzV4N4XUvYc
and this is the video I followed.
Follow these steps:
Open CMD as administrator
Enter this command : cd..
cd..
cd Program Files\Python38\Scripts
Download the package you want and put it in Python38\Scripts folder.
pip install packagename.whl
Done
You can write your python version instead of "38"