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Error installing h5pyViewer by pip install h5pyViewer

I am trying to install h5pyViewer using pip install h5pyViewer but it is giving an error.
Collecting h5pyViewer Using cached h5pyViewer-0.0.1.6.tar.gz (74 kB) ERROR: Command errored out with exit status 1: command: /home/madhur/miniconda3/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-kx4npfnx/h5pyviewer/setup.py'"'"'; __file__='"'"'/tmp/pip-install-kx4npfnx/h5pyviewer/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-9tb86g5b cwd: /tmp/pip-install-kx4npfnx/h5pyviewer/ Complete output (6 lines): Traceback (most recent call last): File "<string>", line 1, in <module> File "/tmp/pip-install-kx4npfnx/h5pyviewer/setup.py", line 82 print ':'+ver+':'+gitcmt+':' ^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print(':'+ver+':'+gitcmt+':')? ---------------------------------------- ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
Python version is 3.8.2
pip version is 20.2.4
Ubuntu 20.04.2 LTS

h5pyViewer 0.0.1.6 was released to PyPI at Nov 5, 2015. The code is obviously Python2-only. The problem was fixed in the git repository in commit 5229b39 at Nov 12, 2018.
Unfortunately it's still not compatible with Python3 due to octal 0755 and other compatibility problems. The bottom line: it's still Python2-only.
There is a fork updated for Python 3. You can try it:
pip install git+https://github.com/Eothred/h5pyViewer.git

exit status 1 when trying to pip install cantools

Whenever I try to pip install cantools==34.0.0 (on python 2.7)
i receive the error:
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support
in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
Collecting cantools==34.0.0
Using cached cantools-34.0.0-py2.py3-none-any.whl (77 kB)
Collecting diskcache
Using cached diskcache-5.0.2.tar.gz (47 kB)
ERROR: Command errored out with exit status 1:
command: 'c:\venv\scripts\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'c:\\users\\bla\\appdata\\local\\temp\\pip-install-4or8zd\\diskcache\\setup.py'"'"'; __file__='"'"'c:\\
users\\bla\\appdata\\local\\temp\\pip-install-4or8zd\\diskcache\\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 'c:\users\bla\appdata\local\temp\pip-pip-egg-info-mxhtc0'
cwd: c:\users\bla\appdata\local\temp\pip-install-4or8zd\diskcache\
Complete output (10 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "c:\users\bla\appdata\local\temp\pip-install-4or8zd\diskcache\setup.py", line 5, in <module>
import diskcache
File "diskcache\__init__.py", line 9, in <module>
from .core import (
File "diskcache\core.py", line 434
raise ValueError('disk must subclass diskcache.Disk') from None
^
SyntaxError: invalid syntax
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
Can anyone please help me? It seems like it happens when it tries to install the package diskcache

I fixed it, the problem was with installing the diskcache module,
By default it tried to install a python 3 version supported version
when I manually installed it pip install diskcache==4.1.0
and then installed cantools again it worked.

I want to install a pip package, but there's some error occurred

I want to install a pip package, but pip said that my python version is 2.7, and I check my python version with python --version, and it said my version is 3.8.3, there is a deprecation:
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
And there is an error occurred too:
ERROR: Command errored out with exit status 1:
command: /System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/dg/by5qxx0s3d369vfkbzbfslfh0000gn/T/pip-install-C65qdp/async-timeout/setup.py'"'"'; __file__='"'"'/private/var/folders/dg/by5qxx0s3d369vfkbzbfslfh0000gn/T/pip-install-C65qdp/async-timeout/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/dg/by5qxx0s3d369vfkbzbfslfh0000gn/T/pip-pip-egg-info-lxWs_X
cwd: /private/var/folders/dg/by5qxx0s3d369vfkbzbfslfh0000gn/T/pip-install-C65qdp/async-timeout/
Complete output (5 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/private/var/folders/dg/by5qxx0s3d369vfkbzbfslfh0000gn/T/pip-install-C65qdp/async-timeout/setup.py", line 1, in <module>
import pathlib
ImportError: No module named pathlib
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
Please help, thanks very much.

Why am I getting an "ERROR Command errored out with exit status 1" when installing the ratfun package for python 3.6?

I am trying to install the ratfun package for python 3.6 with
pip3.6 install ratfun
but am getting the ERROR shown in code down below.
Doing
sudo pip3.6 install ratfun
or updating setuptools
pip3.6 install --upgrade pip setuptools wheel
doesn't help. I am using the latest version of pip3.6.
From other threads I understood that
ERROR: Command errored out with exit status 1:
can in general be linked to some denied permissions, but I don't know how to fix it. Thanks for any ideas!
I am using macOS 10.15.2
Downloading ratfun-2.6.tar.gz (56 kB)
|████████████████████████████████| 56 kB 1.2 MB/s
ERROR: Command errored out with exit status 1:
command: /Library/Frameworks/Python.framework/Versions/3.6/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/nc/bzf21l914zq832bjwd5lc4wh0000gn/T/pip-install-7zqss5yi/ratfun/setup.py'"'"'; __file__='"'"'/private/var/folders/nc/bzf21l914zq832bjwd5lc4wh0000gn/T/pip-install-7zqss5yi/ratfun/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/nc/bzf21l914zq832bjwd5lc4wh0000gn/T/pip-install-7zqss5yi/ratfun/pip-egg-info
cwd: /private/var/folders/nc/bzf21l914zq832bjwd5lc4wh0000gn/T/pip-install-7zqss5yi/ratfun/
Complete output (5 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/tokenize.py", line 452, in open
buffer = _builtin_open(filename, 'rb')
FileNotFoundError: [Errno 2] No such file or directory: '/private/var/folders/nc/bzf21l914zq832bjwd5lc4wh0000gn/T/pip-install-7zqss5yi/ratfun/setup.py'
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.```

The package really doesn't have setup.py. It's not a pip-installable package. You can download it, unpack and try to run python clnum_setup.py install. But please note the package was last released in 2009 so I'd not expect it to run with Python 3. Try Python 2.7.

Unable to install ssl in my local system using pip install ssl

I'm very new to python and when i tried to install some lib it is giving me this issue. can you please help on what to do.
When trying to install ssl using pip command it is giving me the below error
"pip install ssl"
Collecting ssl
Using cached https://files.pythonhosted.org/packages/83/21/f469c9923235f8c36d5fd5334ed11e2681abad7e0032c5aba964dcaf9bbb/ssl-1.16.tar.gz
ERROR: Command errored out with exit status 1:
command: 'c:\users\rajesh_navaneeth\appdata\local\programs\python\python37\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\RAJESH~1\\AppData\\Local\\Temp\\pip-install-ag0q6n7p\\ssl\\setup.py'"'"'; __file__='"'"'C:\\Users\\RAJESH~1\\AppData\\Local\\Temp\\pip-install-ag0q6n7p\\ssl\\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 pip-egg-info
cwd: C:\Users\RAJESH~1\AppData\Local\Temp\pip-install-ag0q6n7p\ssl\
Complete output (6 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\RAJESH~1\AppData\Local\Temp\pip-install-ag0q6n7p\ssl\setup.py", line 33
print 'looking for', f
^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print('looking for', f)?
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

long story short, don't install that python package. It's deprecated (shouldn't be installed in Python 2.6 and newer) and your python already includes ssl package.
In general you shouldn't even be able to install it via pip, but I guess that it's so old that setup.py didn't support version restrictions in the same way it does now.