Develop Reference

why i cant pip install autopy?

Collecting autopy
Using cached autopy-4.0.0.tar.gz (20 kB)
Preparing metadata (setup.py) ... done
Using legacy 'setup.py install' for autopy, since package 'wheel' is not installed.
Installing collected packages: autopy
Running setup.py install for autopy ... error
ERROR: Command errored out with exit status 1:
command: 'c:\python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Nitro 5\\AppData\\Local\\Temp\\pip-install-a48eed40\\autopy_364831de627945c491e2f14d454eac9f\\setup.py'"'"'; __file__='"'"'C:\\Users\\Nitro 5\\AppData\\Local\\Temp\\pip-install-a48eed40\\autopy_364831de627945c491e2f14d454eac9f\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\Nitro 5\AppData\Local\Temp\pip-record-6f8m7fge\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\python39\Include\autopy'
cwd: C:\Users\Nitro 5\AppData\Local\Temp\pip-install-a48eed40\autopy_364831de627945c491e2f14d454eac9f\
Complete output (22 lines):
running install
c:\python39\lib\site-packages\setuptools\command\install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
warnings.warn(
running build
running build_py
creating build
creating build\lib.win-amd64-3.9
creating build\lib.win-amd64-3.9\autopy
copying autopy\__init__.py -> build\lib.win-amd64-3.9\autopy
running build_ext
running build_rust
error: can't find Rust compiler
If you are using an outdated pip version, it is possible a prebuilt wheel is available for this package but pip is not able to install from it. Installing from the wheel would avoid the need for a Rust compiler.
To update pip, run:
pip install --upgrade pip
and then retry package installation.
If you did intend to build this package from source, try installing a Rust compiler from your system package manager and ensure it is on the PATH during installation. Alternatively, rustup (available at https://rustup.rs) is the recommended way to download and update the Rust compiler toolchain.
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Nitro 5\\AppData\\Local\\Temp\\pip-install-a48eed40\\autopy_364831de627945c491e2f14d454eac9f\\setup.py'"'"'; __file__='"'"'C:\\Users\\Nitro 5\\AppData\\Local\\Temp\\pip-install-a48eed40\\autopy_364831de627945c491e2f14d454eac9f\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\Nitro 5\AppData\Local\Temp\pip-record-6f8m7fge\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\python39\Include\autopy' Check the logs for full command output.

This issue seems to be on Py3.9 but not Py3.8. I just tried both.
The https://pypi.org/project/autopy/ page gives info on how to install autopy in case the standard pip install autopy fails.
According to that page:
First, see if a binary wheel is available for your machine by running:
$ pip install -U autopy
If that fails, install rustup [https://rustup.rs/] and then run:
$ rustup default nightly-2019-10-05
$ pip install -U setuptools-rust
$ pip install -U autopy
The above just did the trick for me on Py3.9.

I had several times to install autopy; I can't. Because my python version was 3.9; Only 3.8 can install autopy. I tried this and my autopy get installed.
If you want more versions of autopy, you checkout https://pypi.org/project/autopy/
Thanks.

I have a problem while installing Odoo v13. requirements.txt. Related with Microsoft Visual C++ Build Tools

I'm trying to install Odoo v13 dependencies, but it fail with the next error.
pip install -r ..\Odoo\13\odoo\requirements.txt
Seeing this, I tryed to install manually greenlet v0.4.10 (which is the version I need)
And It says that the problem is with Microsoft Visual C++ Build Tools. I tryed to install It and this happends (I reinstalled Microsoft Visual Studio Installer and Microsoft Visual C++ 2015):
pip install greenlet==0.4.0.
It shows me the next output:
Collecting greenlet==0.4.10
Using cached greenlet-0.4.10.zip (82 kB)
Preparing metadata (setup.py) ... done
Using legacy 'setup.py install' for greenlet, since package 'wheel' is not installed.
Installing collected packages: greenlet
Running setup.py install for greenlet ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\aresua\documents\vscodeprojects\odoo-13-addons\.venv\scripts\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\aresua\\AppData\\Local\\Temp\\pip-install-xxf1xvcp\\greenlet_2223126928944440ab06138578a156c0\\setup.py'"'"'; __file__='"'"'C:\\Users\\aresua\\AppData\\Local\\Temp\\pip-install-xxf1xvcp\\greenlet_2223126928944440ab06138578a156c0\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\aresua\AppData\Local\Temp\pip-record-f2n6j60w\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\aresua\documents\vscodeprojects\odoo-13-addons\.venv\include\site\python3.6\greenlet'
cwd: C:\Users\aresua\AppData\Local\Temp\pip-install-xxf1xvcp\greenlet_2223126928944440ab06138578a156c0\
Complete output (5 lines):
running install
running build
running build_ext
building 'greenlet' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\aresua\documents\vscodeprojects\odoo-13-addons\.venv\scripts\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\aresua\\AppData\\Local\\Temp\\pip-install-xxf1xvcp\\greenlet_2223126928944440ab06138578a156c0\\setup.py'"'"'; __file__='"'"'C:\\Users\\aresua\\AppData\\Local\\Temp\\pip-install-xxf1xvcp\\greenlet_2223126928944440ab06138578a156c0\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\aresua\AppData\Local\Temp\pip-record-f2n6j60w\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\aresua\documents\vscodeprojects\odoo-13-addons\.venv\include\site\python3.6\greenlet' Check the logs for full command output.

According to this, if you're using Windows, install MS visual C++ with: https://aka.ms/vs/16/release/vs_buildtools.exe
Then restart your PC.

How to pip install a package from a read-only directory?

I am trying to install a Python (C-extension, if it matters) package that is located in a mounted directory, which for security reasons is read-only. However, by default pip will build the package in a subdirectory called build in its own location, which I can't.
$ pip install /mnt/remote/pkgname
Processing /mnt/remote/pkgname
Preparing metadata (setup.py) ... done
Using legacy 'setup.py install' for pkgname, since package 'wheel' is not installed.
Installing collected packages: pkgname
Attempting uninstall: pkgname
Found existing installation: pkgname 1.0.0
Uninstalling pkgname-1.0.0:
Successfully uninstalled pkgname-1.0.0
Running setup.py install for pkgname ... error
ERROR: Command errored out with exit status 1:
command: /path/to/venv/bin/python3.8 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/mnt/remote/pkgname/setup.py'"'"'; __file__='"'"'/mnt/remote/pkgname/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-84ofxq5a/install-record.txt --single-version-externally-managed --compile --install-headers /path/to/venv/include/site/python3.8/pkgname
cwd: /mnt/remote/pkgname/
Complete output (6 lines):
running install
running build
running build_ext
building '_pkgname' extension
creating build
error: could not create 'build': Read-only file system
----------------------------------------
Rolling back uninstall of pkgname
Moving to /path/to/venv/lib/python3.8/site-packages/_pkgname.cpython-38-x86_64-linux-gnu.so
from /tmp/pip-uninstall-6pwxs8h_/_pkgname.cpython-38-x86_64-linux-gnu.so
Moving to /path/to/venv/lib/python3.8/site-packages/pkgname-1.0.0.egg-info
from /path/to/venv/lib/python3.8/site-packages/~lclib-1.0.0.egg-info
ERROR: Command errored out with exit status 1: /path/to/venv/bin/python3.8 -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/mnt/remote/pkgname/setup.py'"'"'; __file__='"'"'/mnt/remote/pkgname/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-84ofxq5a/install-record.txt --single-version-externally-managed --compile --install-headers /path/to/venv/include/site/python3.8/pkgname Check the logs for full command output.
I've tried to use combinations of the flags -e, --target <dir>, --src, but none of them changed the output.
Is there a way to compile the package without having to copy the folder locally?
Edit
I've just noticed there is a long discussion on this issue in https://github.com/pypa/pip/issues/10587.
A temporary solution is to run it with a deprecated option:
$ pip install --use-deprecated=out-of-tree-build /mnt/remote/pkgname
But this flag is set to stop working in version 22.1. I still need a long-term solution, and that issue link is probably where we'll get it.

you could use pip install -b customized_build_directory to specify another directory as build base directory, for example /tmp.

I am getting an error while installing zBar

I'm getting an error installing the zbar module. I think the error is related to authorization. How can I solve it?
I wrote pip install zbar.
C:\Users\emiry>pip install zbar
Collecting zbar
Using cached zbar-0.10.zip (31 kB)
Building wheels for collected packages: zbar
Building wheel for zbar (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"'; __file__='"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\emiry\AppData\Local\Temp\pip-wheel-spwm2dxx'
cwd: C:\Users\emiry\AppData\Local\Temp\pip-install-6i6ygv4e\zbar_700c50e90f604c658bec553c6d356553\
Complete output (5 lines):
running bdist_wheel
running build
running build_ext
building 'zbar' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
----------------------------------------
ERROR: Failed building wheel for zbar
Running setup.py clean for zbar
Failed to build zbar
Installing collected packages: zbar
Running setup.py install for zbar ... error
ERROR: Command errored out with exit status 1:
command: 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"'; __file__='"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\emiry\AppData\Local\Temp\pip-record-7pxl18hx\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\Include\zbar'
cwd: C:\Users\emiry\AppData\Local\Temp\pip-install-6i6ygv4e\zbar_700c50e90f604c658bec553c6d356553\
Complete output (5 lines):
running install
running build
running build_ext
building 'zbar' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
----------------------------------------
ERROR: Command errored out with exit status 1: 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"'; __file__='"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\emiry\AppData\Local\Temp\pip-record-7pxl18hx\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\Include\zbar' Check the logs for full command output.
WARNING: You are using pip version 21.2.3; however, version 21.2.4 is available.
You should consider upgrading via the 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe -m pip install --upgrade pip' command.

You need to install MS C++ Visual Build tools with Studio. This is link:- https://visualstudio.microsoft.com/vs/older-downloads/

Error Installing pyaudio: Microsoft Visual C++ 14.0 is required

After doing pip install pyaudio, It started collecting the package but suddenly it displayed Following error
This is the error I got in the terminal
PS C:\Users\user> pip install pyaudio
Collecting pyaudio
Using cached PyAudio-0.2.11.tar.gz (37 kB)
Using legacy 'setup.py install' for pyaudio, since package 'wheel' is not installed.
Installing collected packages: pyaudio
Running setup.py install for pyaudio ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\user\appdata\local\programs\python\python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\user\\AppData\\Local\\Temp\\pip-install-rqkofe07\\pyaudio_e2694735f99f47ea89c7f6ea2c6b1e31\\setup.py'"'"'; __file__='"'"'C:\\Users\\user\\AppData\\Local\\Temp\\pip-install-rqkofe07\\pyaudio_e2694735f99f47ea89c7f6ea2c6b1e31\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\user\AppData\Local\Temp\pip-record-lmei1_wv\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\user\appdata\local\programs\python\python39\Include\pyaudio'
cwd: C:\Users\user\AppData\Local\Temp\pip-install-rqkofe07\pyaudio_e2694735f99f47ea89c7f6ea2c6b1e31\
Complete output (9 lines):
running install
running build
running build_py
creating build
creating build\lib.win-amd64-3.9
copying src\pyaudio.py -> build\lib.win-amd64-3.9
running build_ext
building '_portaudio' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\user\appdata\local\programs\python\python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\user\\AppData\\Local\\Temp\\pip-install-rqkofe07\\pyaudio_e2694735f99f47ea89c7f6ea2c6b1e31\\setup.py'"'"'; __file__='"'"'C:\\Users\\user\\AppData\\Local\\Temp\\pip-install-rqkofe07\\pyaudio_e2694735f99f47ea89c7f6ea2c6b1e31\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\user\AppData\Local\Temp\pip-record-lmei1_wv\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\user\appdata\local\programs\python\python39\Include\pyaudio' Check the logs for full command output.

While the solution by #William will work, I think you should do this instead of installing ~4 gb of programs.
Go here, after that, install a suitable wheel
eg:
The suitable wheel for me is PyAudio-0.2.11-cp39-cp39-win_amd64.whl, as I have python 3.9(cp39) and it is a 64 bit installation(amd64).
After installing it in a directory (say, C:/docs), got to cmd and write
cd C:/docs
pip install PyAudio-0.2.11-cp39-cp39-win_amd64.whl
This should work

extension error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/
The error is in your traceback, you need Microsoft Visual C++.
In order to get C++ on your computer you will need to install Visual Studio using the link in the error code: https://visualstudio.microsoft.com/downloads/