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I don't know what is happening when is tried to upgrade pip fro 20.2.2 to 20.2.3 is showing errors

C:\Users\sulav>python get-pip.py
python: can't open file 'get-pip.py': [Errno 2] No such file or directory
C:\Users\sulav>python -m pip install -U pip
Collecting pip
Using cached pip-20.2.3-py2.py3-none-any.whl (1.5 MB)
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 20.2.2
Uninstalling pip-20.2.2:
Successfully uninstalled pip-20.2.2
Rolling back uninstall of pip
Moving to c:\users\sulav\appdata\roaming\python\python37\scripts\pip.exe
from C:\Users\sulav\AppData\Local\Temp\pip-uninstall-plw0b_z7\pip.exe
Moving to c:\users\sulav\appdata\roaming\python\python37\scripts\pip3.7.exe
from C:\Users\sulav\AppData\Local\Temp\pip-uninstall-plw0b_z7\pip3.7.exe
Moving to c:\users\sulav\appdata\roaming\python\python37\scripts\pip3.exe
from C:\Users\sulav\AppData\Local\Temp\pip-uninstall-plw0b_z7\pip3.exe
Moving to c:\users\sulav\appdata\roaming\python\python37\site-packages\pip-20.2.2.dist-info\
from c:\users\sulav\appdata\roaming\python\python37\site-packages\~ip-20.2.2.dist-info
Moving to c:\users\sulav\appdata\roaming\python\python37\site-packages\pip\
from c:\users\sulav\appdata\roaming\python\python37\site-packages\~ip
ERROR: Exception:
Traceback (most recent call last):
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\cli\base_command.py", line 216, in _main
status = self.run(options, args)
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\cli\req_command.py", line 182, in wrapper
return func(self, options, args)
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\commands\install.py", line 421, in run
pycompile=options.compile,
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\req\__init__.py", line 90, in install_given_reqs
pycompile=pycompile,
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\req\req_install.py", line 821, in install
requested=self.user_supplied,
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\operations\install\wheel.py", line 860, in install_wheel
requested=requested,
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\operations\install\wheel.py", line 762, in _install_wheel
generated_console_scripts = maker.make_multiple(scripts_to_generate)
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_vendor\distlib\scripts.py", line 418, in make_multiple
filenames.extend(self.make(specification, options))
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_internal\operations\install\wheel.py", line 498, in make
return super(PipScriptMaker, self).make(specification, options)
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_vendor\distlib\scripts.py", line 407, in make
self._make_script(entry, filenames, options=options)
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_vendor\distlib\scripts.py", line 307, in _make_script
self._write_script(scriptnames, shebang, script, filenames, ext)
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_vendor\distlib\scripts.py", line 242, in _write_script
launcher = self._get_launcher('t')
File "C:\Users\sulav\AppData\Roaming\Python\Python37\site-packages\pip\_vendor\distlib\scripts.py", line 386, in _get_launcher
raise ValueError(msg)
ValueError: Unable to find resource t64.exe in package pip._vendor.distlib
WARNING: You are using pip version 20.2.2; however, version 20.2.3 is available.
You should consider upgrading via the 'C:\Users\sulav\AppData\Local\Programs\Python\Python37\python.exe -m pip install --upgrade pip' command.

You need to download get-pip.py and make sure that you are in that directory when you are trying to install it. For instance i see that the dirctory you are in is C:\Users\sulav> make sure that it is downloaded to this directory.

Raspberry python3.4 pip error unknown encoding cp437

Yesterday I was testing some python code in my raspberry pi 3 (raspbian jessie), it required the package pytz, so I did:
sudo python3 -m pip install pytz
And then this happens:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 290, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/lib/python3/dist-packages/pip/req.py", line 1198, in prepare_files
do_download,
File "/usr/lib/python3/dist-packages/pip/req.py", line 1376, in unpack_url
self.session,
File "/usr/lib/python3/dist-packages/pip/download.py", line 582, in unpack_http_url
unpack_file(temp_location, location, content_type, link)
File "/usr/lib/python3/dist-packages/pip/util.py", line 640, in unpack_file
unzip_file(filename, location, flatten=not filename.endswith(('.pybundle', '.whl')))
File "/usr/lib/python3/dist-packages/pip/util.py", line 510, in unzip_file
zip = zipfile.ZipFile(zipfp)
File "/usr/lib/python3.4/zipfile.py", line 937, in __init__
self._RealGetContents()
File "/usr/lib/python3.4/zipfile.py", line 1016, in _RealGetContents
filename = filename.decode('cp437')
LookupError: unknown encoding: cp437
It's not only with pytz, I tried to update/upgrade/reinstall pip with:
sudo python3 -m pip install -U pip
And the same error happens
Any idea about how to solve this problem?
I was searching and trying to solve it yesterday
and everything I can do right now is format the SD card.
My Pip version is 1.5.6 but I can't update it, even downloading the code and running setup.py, same problem.

I tried everything I could, and in my case I will recommend:
Copy all your important codes, changes, documents...
Format the SD and start all over again
I've been having short blackouts lately, that corrupted the SD card.

virtualenv installation SSLError: The read operation timed out

I am trying to deploy python flask application using apache2 and mod-wsgi.
I am following this link.
While installing mog-wsgi using the command sudo apt-get install libapache2-mod-wsgi ,I see these lines at the end
apache2_invoke: Enable module wsgi
Action 'configtest' failed.
The Apache error log may have more information.
apache2_reload: Your configuration is broken. Not restarting Apache 2
Is this a smooth installation?
Also, in step 1 of the link when I tried to create a virtual environment using the command
sudo virtualenv venv
This gives me error sudo: virtualenv: command not found
So, I tried to install virtualenv using sudo pip install virtualenv, I am getting this huge error in red(exception).
Downloading/unpacking virtualenv
Downloading virtualenv-15.0.1-py2.py3-none-any.whl (1.8MB): 733kB downloaded
Cleaning up...
Exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 278, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/lib/python2.7/dist-packages/pip/req.py", line 1198, in prepare_files
do_download,
File "/usr/lib/python2.7/dist-packages/pip/req.py", line 1376, in unpack_url
self.session,
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 572, in unpack_http_url
download_hash = _download_url(resp, link, temp_location)
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 433, in _download_url
for chunk in resp_read(4096):
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 421, in resp_read
chunk_size, decode_content=False):
File "/usr/share/python-wheels/urllib3-1.7.1-py2.py3-none-any.whl/urllib3/response.py", line 225, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "/usr/share/python-wheels/urllib3-1.7.1-py2.py3-none-any.whl/urllib3/response.py", line 174, in read
data = self._fp.read(amt)
File "/usr/lib/python2.7/httplib.py", line 573, in read
s = self.fp.read(amt)
File "/usr/lib/python2.7/socket.py", line 380, in read
data = self._sock.recv(left)
File "/usr/lib/python2.7/ssl.py", line 341, in recv
return self.read(buflen)
File "/usr/lib/python2.7/ssl.py", line 260, in read
return self._sslobj.read(len)
SSLError: The read operation timed out
Storing debug log for failure in /home/myname/.pip/pip.log
What could be the problem?

Please use apt-get install virtualenv or apt-get install python-virtualenv (depending on your OS version) instead of polluting the system with packages installed by sudo pip install.

'error: Error -5 while decompressing data: incomplete or truncated stream' when installing pip package

I'm having the following error when running pip install Pillow==2.9.0 in a virtualenv: error: Error -5 while decompressing data: incomplete or truncated stream
Other packages install/uninstall fine, it just seems to affects Pillow 2.9.0. It doesn't seem to matter what virtualenv I'm in (or not).
Downloading a source tarball and installing from that worked, but since this is on a build server that's not an ideal workaround as I want to rely on pip install -r requirements.txt
Versions:
pip --version: pip 7.1.0 from /usr/local/lib/python2.7/site-packages (python 2.7)
python --version: Python 2.7.10
The full traceback is:
Collecting Pillow==2.9.0
/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning
Exception:
Traceback (most recent call last):
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/basecommand.py", line 223, in main
status = self.run(options, args)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/commands/install.py", line 282, in run
requirement_set.prepare_files(finder)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/req/req_set.py", line 334, in prepare_files
functools.partial(self._prepare_file, finder))
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/req/req_set.py", line 321, in _walk_req_to_install
more_reqs = handler(req_to_install)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/req/req_set.py", line 491, in _prepare_file
session=self.session)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/download.py", line 825, in unpack_url
session,
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/download.py", line 673, in unpack_http_url
from_path, content_type = _download_http_url(link, session, temp_dir)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/download.py", line 857, in _download_http_url
stream=True,
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/requests/sessions.py", line 477, in get
return self.request('GET', url, **kwargs)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/download.py", line 373, in request
return super(PipSession, self).request(method, url, *args, **kwargs)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/requests/sessions.py", line 465, in request
resp = self.send(prep, **send_kwargs)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/requests/sessions.py", line 573, in send
r = adapter.send(request, **kwargs)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/cachecontrol/adapter.py", line 36, in send
cached_response = self.controller.cached_request(request)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/cachecontrol/controller.py", line 102, in cached_request
resp = self.serializer.loads(request, self.cache.get(cache_url))
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/cachecontrol/serialize.py", line 108, in loads
return getattr(self, "_loads_v{0}".format(ver))(request, data)
File "/mnt/jenkins/jobA/workspace/.pyenv/local/lib/python2.7/site-packages/pip/_vendor/cachecontrol/serialize.py", line 164, in _loads_v2
cached = json.loads(zlib.decompress(data).decode("utf8"))
error: Error -5 while decompressing data: incomplete or truncated stream

Turns out that there was a corrupt entry in pip's local cache (located in my case, and by default I believe, in ~/.cache/pip).
I tested that by trying pip install --no-cache-dir Pillow==2.9.0 and lo and behold, it worked.
To confirm it was the cache, I ran:
pip uninstall Pillow
rm -rf ~/.cache/pip/*
pip install Pillow==2.9.0
which succeeded where it had failed before.
I don't know how there came to be a problem with the cache, but my guess is that pip got interrupted mid-download causing the cached data for Pillow to be corrupted

I found my issue to be with memory, of the disk.
Running df showed I had used 92% memory. After deleting and cleaning the hard drive (using Disk Usage Analyzer) I was able to successfully decompress data

for anyone having similar situation as mine. It's run out of space during installation --> cache still there but corrupted.
so ?
remove this folder ~/.cache/pip and pip works again.

What is the error I am facing when I am installing Django via PIP in a virtualenv?

On my OSX 10.10.2, in a virtualenv, I tried to install Django via pip using the command:
pip install django
And this the responds I got:
Collecting django
Downloading Django-1.7.7-py2.py3-none-any.whl (7.4MB)
100% |################################| 7.4MB 58kB/s
Installing collected packages: django
Exception:
Traceback (most recent call last):
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/basecommand.py", line 232, in main
status = self.run(options, args)
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/commands/install.py", line 347, in run
root=options.root_path,
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/req/req_set.py", line 549, in install
**kwargs
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/req/req_install.py", line 754, in install
self.move_wheel_files(self.source_dir, root=root)
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/req/req_install.py", line 963, in move_wheel_files
isolated=self.isolated,
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/wheel.py", line 266, in move_wheel_files
clobber(source, dest, False, fixer=fixer, filter=filter)
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/site-packages/pip/wheel.py", line 212, in clobber
shutil.copyfile(srcfile, destfile)
File "/Users/qmbp/.virtualenvs/demo/lib/python3.4/shutil.py", line 109, in copyfile
with open(dst, 'wb') as fdst:
PermissionError: [Errno 13] Permission denied: '/Users/qmbp/.virtualenvs/demo/bin/django-admin.py'
I guess the issue is caused as I did not prefix sudo to the command. But I read that it was a good idea to use sudo in OSX. And that is why virtualenv is encouraged as sudo is not needed inside it.Here is a screenshot of my files as I could not find the "env" in the bin folder.

Looks like you forgot to activate your venv.
Try:
source path_to_your_venv/bin/activate
pip install django