Develop Reference

Pycaret Installation errors out with pyLDAvis

I am installing Pycaret==2.2.1 and getting the below error.
Collecting pyLDAvis (from pycaret==2.2.1)
Using cached https://files.pythonhosted.org/packages/03/a5/15a0da6b0150b8b68610cc78af80364a80a9a4c8b6dd5ee549b8989d4b60/pyLDAvis-3.3.1.tar.gz
Installing build dependencies ... error
Complete output from command C:\Users\mm\Anaconda3\python.exe -m pip install --ignore-installed --no-user --prefix C:\Users\mm\AppData\Local\Temp\pip-build-env-1gfpkcpv --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools:
Collecting setuptools
Using cached https://files.pythonhosted.org/packages/3b/02/8d4d27b1cacaac2d129a27d17a22d92a2a5eedcb7817d4ed8ab0d4daf5c4/setuptools-60.9.3-py3-none-any.whl
Installing collected packages: setuptools
Exception:
Traceback (most recent call last):
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\cli\base_command.py", line 143, in main
status = self.run(options, args)
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 366, in run
use_user_site=options.use_user_site,
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\req\__init__.py", line 49, in install_given_reqs
**kwargs
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\req\req_install.py", line 760, in install
use_user_site=use_user_site, pycompile=pycompile,
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\req\req_install.py", line 382, in move_wheel_files
warn_script_location=warn_script_location,
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\wheel.py", line 215, in move_wheel_files
prefix=prefix,
File "C:\Users\mm\Anaconda3\lib\site-packages\pip\_internal\locations.py", line 165, in distutils_scheme
i.finalize_options()
File "C:\Users\mm\Anaconda3\lib\distutils\command\install.py", line 248, in finalize_options
"must supply either home or prefix/exec-prefix -- not both")
distutils.errors.DistutilsOptionError: must supply either home or prefix/exec-prefix -- not both
----------------------------------------
Command "C:\Users\mm\Anaconda3\python.exe -m pip install --ignore-installed --no-user --prefix C:\Users\mm\AppData\Local\Temp\pip-build-env-1gfpkcpv --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools" failed with error code 2 in None
I have :
Python 3.7 with Anaconda
Windows 10 - 64 bit
Thanks very much

Error When Using Pip To Get Python Packages On Linux Terminal

When I try to install a python package (cryptography in this case) in the Linux terminal, I get an error. I am using Python version 3.8. Here's the code:
Input:
python3.8 -m pip install cryptography or pip install cryptography
Output (anything after "Installing build dependencies ... error" is in RED):
Defaulting to user installation because normal site-packages is not writeable
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting cryptography
Using cached cryptography-36.0.1.tar.gz (572 kB)
Installing build dependencies ... error
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python3.8
/usr/local/lib/python3.8/site-packages/pip install --ignore-installed
--no-user --prefix /tmp/pip-build-env-j3i9og4s/overlay
--no-warn-script-location --no-binary :none: --only-binary :none: -i
https://pypi.org/simple --extra-index-url
https://www.piwheels.org/simple -- 'setuptools>=40.6.0' wheel
'cffi>=1.12; platform_python_implementation != '"'"'PyPy'"'"''
'setuptools-rust>=0.11.4'
cwd: None
Complete output (26 lines):
Looking in indexes: https://pypi.org/simple,
https://www.piwheels.org/simple, https://www.piwheels.org/simple
Collecting setuptools>=40.6.0
Using cached setuptools-60.9.3-py3-none-any.whl (1.1 MB)
Collecting wheel
Using cached wheel-0.37.1-py2.py3-none-any.whl (35 kB)
Collecting cffi>=1.12
Using cached cffi-1.15.0.tar.gz (484 kB)
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python3.8 -c 'import sys, setuptools,
tokenize; sys.argv[0] =
'"'"'/tmp/pip-install-9sokml3p/cffi/setup.py'"'"';
__file__='"'"'/tmp/pip-install-9sokml3p/cffi/setup.py'"'"';f=getattr(tokenize,
'"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"',
'"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))'
egg_info --egg-base /tmp/pip-pip-egg-info-5ylb3zxi
cwd: /tmp/pip-install-9sokml3p/cffi/
Complete output (11 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/local/lib/python3.8/site-packages/setuptools/__init__.py",
line 19, in <module>
from setuptools.dist import Distribution
File "/usr/local/lib/python3.8/site-packages/setuptools/dist.py",
line 34, in <module>
from setuptools import windows_support
File "/usr/local/lib/python3.8/site-packages/setuptools/windows_support.py",
line 2, in <module>
import ctypes
File "/usr/local/lib/python3.8/ctypes/__init__.py", line 7, in <module>
from _ctypes import Union, Structure, Array
ModuleNotFoundError: No module named '_ctypes'
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py
egg_info Check the logs for full command output.
WARNING: You are using pip version 20.1.1; however, version 22.0.3
is available.
You should consider upgrading via the '/usr/local/bin/python3.8 -m
pip install --upgrade pip' command.
----------------------------------------
ERROR: Command errored out with exit status 1:
/usr/local/bin/python3.8 /usr/local/lib/python3.8/site-packages/pip
install --ignore-installed --no-user --prefix
/tmp/pip-build-env-j3i9og4s/overlay --no-warn-script-location
--no-binary :none: --only-binary :none: -i https://pypi.org/simple
--extra-index-url https://www.piwheels.org/simple --
'setuptools>=40.6.0' wheel 'cffi>=1.12; platform_python_implementation
!= '"'"'PyPy'"'"'' 'setuptools-rust>=0.11.4' Check the logs for full
command output.
I don't really understand what this means, and I'd like some assistance installing a package and trying to fix this error. Thanks! -Shane
EDIT: I found near the beginning the text 'Command errored out with exit status 1'
EDIT: I have installed libffi-dev.

Solved by upgrading pip to pip3 using sudo apt-get -y install python3-pip.

Looks like you may need to install libffi-dev. I'm not sure your distro, but it'll be there. Distro is raspbian.
Install with:
apt-get install libffi-dev
There are other questions that looks similar since they have the _ctypes issue, but I won't mark this as a duplicate since your question is exactly the same. I think the underlying root cause is probably the same. See here and here.

Error installing pandas for python 3.7.12

Context:
I am using the brand new MacBook pro with M1 pro, it has macOS Monterey 12.0 it is only has a week old.
I installed pyenv with brew and then I installed version 3.7.12, I wanted to create a venv and install pandas inside it but by mistake, I started to install it on the pyenv of the 3.7.12 without the venv created. When it was executing the installation and I realized I pressed Command + C and stopped.
After that, I created the venv "cosa5" and try to install it but it showed me the following error:
(cosa5) matiasnavarrete#MacBook-Pro-de-Matias codetest % pip install pandas
Collecting pandas
Using cached pandas-1.3.4.tar.gz (4.7 MB)
Installing build dependencies ... error
ERROR: Command errored out with exit status 1:
command: /Users/matiasnavarrete/Desktop/codetest/cosa5/bin/python /Users/matiasnavarrete/Desktop/codetest/cosa5/lib/python3.7/site-packages/pip install --ignore-installed --no-user --prefix /private/var/folders/4p/syttjfhj7896l__s3gtxnxkm0000gn/T/pip-build-env-44pq47ee/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=51.0.0' wheel 'Cython>=0.29.24,<3' 'oldest-supported-numpy>=0.10'
cwd: None
Complete output (29 lines):
Collecting setuptools>=51.0.0
Using cached setuptools-59.4.0-py3-none-any.whl (952 kB)
Collecting wheel
Using cached wheel-0.37.0-py2.py3-none-any.whl (35 kB)
Collecting Cython<3,>=0.29.24
Using cached Cython-0.29.24-py2.py3-none-any.whl (979 kB)
Collecting oldest-supported-numpy>=0.10
Using cached oldest_supported_numpy-0.12-py3-none-any.whl (3.8 kB)
Collecting numpy==1.14.5; python_version == "3.7" and platform_machine != "aarch64" and platform_system != "AIX" and platform_python_implementation != "PyPy"
Using cached numpy-1.14.5.zip (4.9 MB)
ERROR: Command errored out with exit status 1:
command: /Users/matiasnavarrete/Desktop/codetest/cosa5/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/4p/syttjfhj7896l__s3gtxnxkm0000gn/T/pip-install-r3mgeudj/numpy/setup.py'"'"'; __file__='"'"'/private/var/folders/4p/syttjfhj7896l__s3gtxnxkm0000gn/T/pip-install-r3mgeudj/numpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /private/var/folders/4p/syttjfhj7896l__s3gtxnxkm0000gn/T/pip-pip-egg-info-h4uqe4mm
cwd: /private/var/folders/4p/syttjfhj7896l__s3gtxnxkm0000gn/T/pip-install-r3mgeudj/numpy/
Complete output (11 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/Users/matiasnavarrete/Desktop/codetest/cosa5/lib/python3.7/site-packages/setuptools/__init__.py", line 19, in <module>
from setuptools.dist import Distribution
File "/Users/matiasnavarrete/Desktop/codetest/cosa5/lib/python3.7/site-packages/setuptools/dist.py", line 34, in <module>
from setuptools import windows_support
File "/Users/matiasnavarrete/Desktop/codetest/cosa5/lib/python3.7/site-packages/setuptools/windows_support.py", line 2, in <module>
import ctypes
File "/Users/matiasnavarrete/.pyenv/versions/3.7.12/lib/python3.7/ctypes/__init__.py", line 7, in <module>
from _ctypes import Union, Structure, Array
ModuleNotFoundError: No module named '_ctypes'
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
WARNING: You are using pip version 20.1.1; however, version 21.3.1 is available.
You should consider upgrading via the '/Users/matiasnavarrete/Desktop/codetest/cosa5/bin/python -m pip install --upgrade pip' command.
----------------------------------------
ERROR: Command errored out with exit status 1: /Users/matiasnavarrete/Desktop/codetest/cosa5/bin/python /Users/matiasnavarrete/Desktop/codetest/cosa5/lib/python3.7/site-packages/pip install --ignore-installed --no-user --prefix /private/var/folders/4p/syttjfhj7896l__s3gtxnxkm0000gn/T/pip-build-env-44pq47ee/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=51.0.0' wheel 'Cython>=0.29.24,<3' 'oldest-supported-numpy>=0.10' Check the logs for full command output.
WARNING: You are using pip version 20.1.1; however, version 21.3.1 is available.
You should consider upgrading via the '/Users/matiasnavarrete/Desktop/codetest/cosa5/bin/python -m pip install --upgrade pip' command.
I don't know if the fact that I stopped it is related to the bug or not, but I mentioned it anyway.
Tried uninstalling 3.7.12 from pyenv, installing it again, creating a new venv but it keeps showing the same error.
After this I installed 3.9.9, I created the venv and I installed pandas and I had no problem with that version. It is 3.7.12 that keeps giving me problems.
Question:
How can I fix it?

paramiko installation for python failed : 'unable to find vcvarsall.bat'

I am trying to install paramiko package using pip and not able to proceed due to this error.
OS: Win 10 x64
Python version: 3.4.0 x86
I also installed MS Visual C++ 2008 Express edition and found that the environment variable is set correctly.
But, still it says that the vcvarsall.bat can't be found. The command line is attached below. Pl. suggest a solution for this.
C:\>pip install paramiko
Collecting paramiko
Using cached https://files.pythonhosted.org/packages/95/19/124e9287b43e6ff3ebb9cdea3e5e8e88475a873c05ccdf8b7e20d2c4201e/paramiko-2.7.2-py2.py3-none-any.whl
Collecting bcrypt>=3.1.3 (from paramiko)
Using cached https://files.pythonhosted.org/packages/04/1c/a026eef0c7547b9eef7c61d25df0c21ddacf91592725d6279ab2a500a39d/bcrypt-3.1.7-cp34-cp34m-win32.whl
Collecting pynacl>=1.0.1 (from paramiko)
Using cached https://files.pythonhosted.org/packages/cf/5a/25aeb636baeceab15c8e57e66b8aa930c011ec1c035f284170cacb05025e/PyNaCl-1.4.0.tar.gz
Installing build dependencies ... error
Complete output from command C:\Python34\python.exe -m pip install --ignore-installed --no-user --prefix C:\Users\Raghavan\AppData\Local\Temp\pip-build-env-nnl_k10v --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools>=40.8.0 wheel "cffi>=1.4.1; python_implementation != 'PyPy'":
Collecting setuptools>=40.8.0
Using cached https://files.pythonhosted.org/packages/91/af/18d58ed8a8e7e6b91d71b0367034faf8ea41e1004018811388ed07a7f2d6/setuptools-43.0.0-py2.py3-none-any.whl
Collecting wheel
Using cached https://files.pythonhosted.org/packages/00/83/b4a77d044e78ad1a45610eb88f745be2fd2c6d658f9798a15e384b7d57c9/wheel-0.33.6-py2.py3-none-any.whl
Collecting cffi>=1.4.1
Using cached https://files.pythonhosted.org/packages/cb/ae/380e33d621ae301770358eb11a896a34c34f30db188847a561e8e39ee866/cffi-1.14.3.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\Raghavan\AppData\Local\Temp\pip-install-3wu31oij\cffi\setup.py", line 131, in <module>
if sys.platform == 'win32' and uses_msvc():
File "C:\Users\Raghavan\AppData\Local\Temp\pip-install-3wu31oij\cffi\setup.py", line 109, in uses_msvc
return config.try_compile('#ifndef _MSC_VER\n#error "not MSVC"\n#endif')
File "C:\Python34\lib\distutils\command\config.py", line 227, in try_compile
self._compile(body, headers, include_dirs, lang)
File "C:\Python34\lib\distutils\command\config.py", line 133, in _compile
self.compiler.compile([src], include_dirs=include_dirs)
File "C:\Python34\lib\distutils\msvc9compiler.py", line 460, in compile
self.initialize()
File "C:\Python34\lib\distutils\msvc9compiler.py", line 371, in initialize
vc_env = query_vcvarsall(VERSION, plat_spec)
File "C:\Python34\lib\distutils\msvc9compiler.py", line 259, in query_vcvarsall
raise DistutilsPlatformError("Unable to find vcvarsall.bat")
distutils.errors.DistutilsPlatformError: Unable to find vcvarsall.bat
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in C:\Users\Raghavan\AppData\Local\Temp\pip-install-3wu31oij\cffi\
----------------------------------------
Command "C:\Python34\python.exe -m pip install --ignore-installed --no-user --prefix C:\Users\Raghavan\AppData\Local\Temp\pip-build-env-nnl_k10v --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools>=40.8.0 wheel "cffi>=1.4.1; python_implementation != 'PyPy'"" failed with error code 1 in None

I was facing issue while installing paramiko for Pycharm.
One suggestion i found was to use anaconda which come preinstalled with many packages including paramiko.
Found solution:
python -m pip install --upgrade pip
This command updated my pip version from 19.2.3 to 20.3.3
then successfully installed paramiko:
python -m pip install -U paramiko
Python 3.8 is installed in my system.

How to solve this error of downloading pyautogui library?

It's throwing errors while trying to install Python pyautogui module. Anyone knows why it throws an error?
C:\Users\Mtronics>pip install pyautogui==0.9.35
Collecting pyautogui==0.9.35
Downloading PyAutoGUI-0.9.35.zip (57 kB)
|████████████████████████████████| 57 kB 415 kB/s
Collecting pymsgbox
Using cached PyMsgBox-1.0.8.tar.gz (18 kB)
Installing build dependencies ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\mtronics\appdata\local\programs\python\python38-32\python.exe' 'c:\users\mtronics\appdata\local\programs\python\python38-32\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\Mtronics\AppData\Local\Temp\pip-build-env-pvhbyby8\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel
cwd: None
Complete output (14 lines):
Traceback (most recent call last):
File "c:\users\mtronics\appdata\local\programs\python\python38-32\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "c:\users\mtronics\appdata\local\programs\python\python38-32\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "c:\users\mtronics\appdata\local\programs\python\python38-32\lib\site-packages\pip\__main__.py", line 23, in <module>
from pip._internal.cli.main import main as _main # isort:skip # noqa
File "c:\users\mtronics\appdata\local\programs\python\python38-32\lib\site-packages\pip\_internal\cli\main.py", line 5, in <module>
import locale
File "c:\users\mtronics\appdata\local\programs\python\python38-32\lib\locale.py", line 16, in <module>
import re
File "c:\users\mtronics\appdata\local\programs\python\python38-32\lib\re.py", line 145, in <module>
class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\mtronics\appdata\local\programs\python\python38-32\python.exe' 'c:\users\mtronics\appdata\local\programs\python\python38-32\lib\site-packages\pip' install --ignore-installed --no-user --prefix 'C:\Users\Mtronics\AppData\Local\Temp\pip-build-env-pvhbyby8\overlay' --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel Check the logs for full command output.

It is because you have a non standard enum module installed. It used to work before Python 3.6 but is no longer compatible with the standard libary.
Run this command to uninstall it and then try again:
pip uninstall -y enum34