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Python 3.5 pip 9 AttributeError: 'NoneType' object has no attribute 'bytes'

What is the problem? I tried "python -m pip install -U pip" and "python -m pip install --upgrade pip" both with the same error (and "pip install -U --force-reinstall pip"). what should I do?
C:\Users\Peyman\PycharmProjects\untitled3>python -m pip install -U pip
Collecting pip
Using cached https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl
Installing collected packages: pip
Found existing installation: pip 9.0.3
Uninstalling pip-9.0.3:
Successfully uninstalled pip-9.0.3
Rolling back uninstall of pip
Exception:
Traceback (most recent call last):
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\basecommand.py", line 215, in main
status = self.run(options, args)
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\commands\install.py", line 342, in run
prefix=options.prefix_path,
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\req\req_set.py", line 784, in install
**kwargs
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\req\req_install.py", line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\req\req_install.py", line 1064, in move_wheel_files
isolated=self.isolated,
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\wheel.py", line 462, in move_wheel_files
generated.extend(maker.make(spec))
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\_vendor\distlib\scripts.py", line 372, in make
self._make_script(entry, filenames, options=options)
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\_vendor\distlib\scripts.py", line 276, in _make_script
self._write_script(scriptnames, shebang, script, filenames, ext)
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\_vendor\distlib\scripts.py", line 212, in _write_script
launcher = self._get_launcher('t')
File "C:\Users\Peyman\AppData\Roaming\Python\Python35\site-packages\pip\_vendor\distlib\scripts.py", line 351, in _get_launcher
result = finder(distlib_package).find(name).bytes
AttributeError: 'NoneType' object has no attribute 'bytes'
You are using pip version 9.0.3, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

Try using easy_install -U pip, according to this bug report.
Edit: Okay, go to "https://pypi.org/simple/pip/", and download the latest .whl file (scroll to the bottom). When you have it, open cmd in the same folder (by clicking File -> open powershell/cmd in the file explorer), and type
pip install filename, with filename being the name of the file you downloaded (Should be pip-18.0-py2.py3-none-any.whl).
Try that and tell me if it works.

You can try this following:
python -m pip install -U --force-reinstall pip

My answer is a variation of assmmahmud's but for me I had to use the option --user.
I'm on windows so from CMD.exe;
py -m pip install --user --force-reinstall -U
If I don't use the --user option then the error occurs.

Download get-pip.py from the official site and run this code:
$ python get-pip.py
or on Windows, this one:
py get-pip.py

Installing Pip on Msys

I have built a simple PyGTK app using Python 3.5.2 and Msys but I need some modules not in the default installation, and although I could use setup.py install to get them I would much rather use pip.
I looked around and found this but it relates to Python 2 and gave an error when attempting to follow the instructions given:
$ python3 getpip.py
Collecting pip
Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)
Collecting setuptools
Using cached setuptools-38.2.5-py2.py3-none-any.whl
Collecting wheel
Using cached wheel-0.30.0-py2.py3-none-any.whl
Installing collected packages: pip, setuptools, wheel
Exception:
Traceback (most recent call last):
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\basecommand.py", line 215, in main
status = self.run(options, args)
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\commands\install.py", line 342, in run
prefix=options.prefix_path,
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\req\req_set.py", line 784, in install
**kwargs
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\req\req_install.py", line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\req\req_install.py", line 1064, in move_wheel_files
isolated=self.isolated,
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\wheel.py", line 462, in move_wheel_files
generated.extend(maker.make(spec))
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 372, in make
self._make_script(entry, filenames, options=options)
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 276, in _make_script
self._write_script(scriptnames, shebang, script, filenames, ext)
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 212, in _write_script
launcher = self._get_launcher('t')
File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 351, in _get_launcher
result = finder(distlib_package).find(name).bytes
AttributeError: 'NoneType' object has no attribute 'bytes'
and I tried the way one would install pip on Linux:
pacman -S python2-pip
pacman -S python-pip
as listed here, as well as:
pacman -S python3-pip
but each time I got a error: target not found: error.
Surprisingly I couldn't find anything else.
So how do I get pip on Msys?
Thanks.

Please note that at this time the following command is now working on msys2:
$ pacman -S python3-pip
$ pip3 install --upgrade pip

The accepted answer installs a new Python exectuable with pip, but without GTK support.
In order to install pip support to the existing GTK Python executable, after encountering that error, we need to run:
python -m pip install -U --force-reinstall pip
(taken from this issue)
To summarize the steps required to install Pip support to the GTK-Python executable:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py
(ignore the error from previous step)
python -m pip install -U --force-reinstall pip

To install pip, securely download get-pip.py.
Then run the following:
python get-pip.py
For more details refer: https://pip.pypa.io/en/stable/installing/

Cannot pip install watson-developer-cloud

OS: Windows 10 x64
I am trying to install watson-developer-cloud using the command
pip install --upgrade watson-developer-cloud
However, I get the following error
Exception:
Traceback (most recent call last):
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-
packages\pip\basecommand.py", line 215, in main
status = self.run(options, args)
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-
packages\pip\commands\install.py", line 342, in run
prefix=options.prefix_path,
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-packages\pip\req\req_set.py", line 784, in install
**kwargs
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-packages\pip\req\req_install.py", line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-packages\pip\req\req_install.py", line 1064, in move_wheel_files
isolated=self.isolated,
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-packages\pip\wheel.py",
line 345, in move_wheel_files
clobber(source, lib_dir, True)
File "C:\Users\AurangzebRathore\Anaconda2\lib\site-packages\pip\wheel.py", line 323, in clobber
shutil.copyfile(srcfile, destfile)
File "C:\Users\AurangzebRathore\Anaconda2\lib\shutil.py", line 97, in copyfile
with open(dst, 'wb') as fdst:
IOError: [Errno 13] Permission denied:
'C:\\Users\\AurangzebRathore\\Anaconda2\\Lib\\site-packages\\_cffi_backend.pyd'
I tried to use
$ easy_install --upgrade watson-developer-cloud
but when I run the code, it still says
ImportError: No module named watson_developer_cloud

Make sure you are running command as administrator.
Find the Command Prompt (cmd.exe)
Right click on "Command Prompt"
Run as Administrator
After it, use pip --version and see if are working. If not, you need to install again. If you installed Python from source, with an installer from python.org, or via Homebrew you should already have pip.
If pip isn’t already installed, then first try to bootstrap it from the standard library:
python -m ensurepip --default-pip
And try update your pip:
python -m pip install --upgrade
Install your Watson package:
pip install -I watson-developer-cloud==0.26.1
Obs.: This is the Official command in the API Reference, as you can see in this link.
See more about in this useful Installing Packages - Python.

pip upgrade OSError: [Errno:13] Permission Denied

I need to upgrade pip on my Ubuntu system but I am getting error:
Collecting pip
Using cached pip-9.0.1-py2.py3-none-any.whl
Installing collected packages: pip
Found existing installation: pip 8.1.2
Uninstalling pip-8.1.2:
Successfully uninstalled pip-8.1.2
Rolling back uninstall of pip
Exception:
Traceback (most recent call last):
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/commands/install.py", line 317, in run
prefix=options.prefix_path,
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/req/req_set.py", line 742, in install
**kwargs
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/req/req_install.py", line 831, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/req/req_install.py", line 1032, in move_wheel_files
isolated=self.isolated,
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/wheel.py", line 346, in move_wheel_files
clobber(source, lib_dir, True)
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/wheel.py", line 317, in clobber
ensure_dir(destdir)
File "/home/shivams334/.local/lib/python2.7/site-packages/pip/utils/__init__.py", line 83, in ensure_dir
os.makedirs(path)
File "/usr/lib/python2.7/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/pip-9.0.1.dist-info'
You are using pip version 8.1.2, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Maybe I should go with 'chown' but don't know how to use it. Please help.

Since you want to upgrade your system-wide Python, you need to run this command with administrator privilege:
sudo pip install -U pip
But, I recommend you not changing/polluting your system-wide Python. Instead use a virtualenv:
virtualenv myapp
source myapp/bin/activate
pip install -U pip # <- only if virtualenv is not up to date

Cannot upgrade Pip. Permission denied. Why?

I'm trying to upgrade pip on my iMac, but I keep getting a permission denied error. I'm the admin, so I don't know what I've done wrong.
iMac:~ me$ pip install --upgrade pip
You are using pip version 6.0.8, however version 7.1.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting pip from https://pypi.python.org/packages/py2.py3/p/pip/pip-7.1.2-py2.py3-none-any.whl#md5=5ff9fec0be479e4e36df467556deed4d
Downloading pip-7.1.2-py2.py3-none-any.whl (1.1MB)
100% |################################| 1.1MB 181kB/s
Installing collected packages: pip
Found existing installation: pip 6.0.8
Uninstalling pip-6.0.8:
Exception:
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/pip/basecommand.py", line 232, in main
status = self.run(options, args)
File "/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/pip/commands/install.py", line 347, in run
root=options.root_path,
File "/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/pip/req/req_set.py", line 543, in install
requirement.uninstall(auto_confirm=True)
File "/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/pip/req/req_install.py", line 667, in uninstall
paths_to_remove.remove(auto_confirm)
File "/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/pip/req/req_uninstall.py", line 126, in remove
renames(path, new_path)
File "/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/pip/utils/__init__.py", line 316, in renames
shutil.move(old, new)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 300, in move
rmtree(src)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 247, in rmtree
rmtree(fullname, ignore_errors, onerror)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 252, in rmtree
onerror(os.remove, fullname, sys.exc_info())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 250, in rmtree
os.remove(fullname)
OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/pip-6.0.8-py2.7.egg/EGG-INFO/dependency_links.txt'
I don't know what I've done wrong here as an upgrade seem fairly straightforward.
Thanks,

pip installations require elevation
sudo pip install --upgrade pip
Just because you are currently using an admin account doesn't mean the command will run with elevation, unless you specify sudo

You have to use sudo since you are upgrading pip "globally". I prefer to install Homebrew and let Homebrew manage everything.
Install Xcode from the App Store
Install Homebrew - ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Install Python - brew install python, which also installs pip.
With this setup, everything is installed locally, which doesn't require you to run sudo.
I hope this helps.

You can do one of two ways:
chown -R user /path/to/file a more detailed information can be found in this SO post, while it doesn't relate to the exact problem it deals with the same issue
Quick and dirty way just do pip install --upgrade pip as already mentioned. However, many users will suggest against that.