This question already has answers here:
Why does "pip install" inside Python raise a SyntaxError?
(7 answers)
Closed 7 years ago.
I've just installed python 3.5, ran Python 3.5 (32-bit) and typed
pip
and received the message:
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
pip
NameError: name 'pip' is not defined
I don't see any scripts directories in my path, but I found pip.py in C:\Users\UserName\AppData\Local\Programs\Python\Python35-32\Scripts.
I selected the option to "Add python to environment variables" during installation, but it doesn't seem to have done anything.
I googled this and got this guide, which says that earlier versions need to add some path names. I don't have a C:\Python... directory so I tried adding the Scripts folder from above, same result.
How do I install python so that it actually works (ie. I can run pip, install modules, etc.)?
Maybe you'd like try run pip in Python shell like this:
>>> import pip
>>> pip.main(['install', 'requests'])
This will install requests package using pip.
Because pip is a module in standard library, but it isn't a built-in function(or module), so you need import it.
Other way, you should run pip in system shell(cmd. If pip is in path).
I have a Mac, but luckily this should work the same way:
pip is a command-line thing. You don't run it in python.
For example, on my Mac, I just say:
$pip install somelib
pretty easy!
First go to the pip documentation if not install before:
http://pip.readthedocs.org/en/stable/installing/
and follow the install pip which is first download get-pip.py from
https://bootstrap.pypa.io/get-pip.py
Then run the following (which may require administrator access):
python get-pip.py
Related
I can't install any python modules that require python 2.7 or later. I have uninstalled everything that Mac would let me that was related to python 2, and I run everything on python 3. I am completely lost. I am on Mac and whenever I try to install a module(like praw) this pops up.
I used the command
pip install praw
Collecting praw
Using cached https://files.pythonhosted.org/packages/41/89/94c1ec81a05536e2c2a1dc2e8f5402c8ad65963f28948bf41c64621e238b/praw-6.5.0-py2-none-any.whl
ERROR: Package 'praw' requires a different Python: 2.7.16 not in '>=3.5' ```
Welcome to Stack Overflow Malachi! I believe you're looking for the command pip3 (pip3 install praw) to install Python 3 packages through pip. If you open your terminal and type man pip to get the manual page, there is a line that says:
pip is the command to use when installing packages for Python 2, while pip3 is the command to use when installing packages for Python 3.
Looks like the most recent version of praw requires Python 3.5 or greater.
The last version that supported Python 2.7 was praw 5.4.0. If you're still using Python 2.7 and need this package, try running
pip install praw==5.4.0
If you're using Python 3.x, check to see if you're using the right version of pip. If you have both Python 2 and Python 3 installed on your system, you'll likely need to install system wide packages using pip3 instead if pip. In this case, try running
pip3 install praw
Alternatively, if you're targeting a specific Python interpreter (e.g. python3.7, python3.8, etc), and want to be certain that you are using the correct pip executable for your interpreter, you can run pip as a Python package via
python3 -m pip <args>
where python3 can be replaced by any interpreter path.
I've installed the module pyaudio using pip. However, when I try to import it, Python says the module is not found:
C:\Users\hp>pip install pyaudio
Requirement already satisfied: pyaudio in c:\users\hp\appdata\local\programs\python\python37\lib\site-packages (0.2.11)
>>> import pyaudio
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'pyaudio'
Why can't Python find the installed module?
(I am using Python 3.7.)
It happens quite often that someone installs a Python package using pip, but then can't seem to import it in Python. To understand why this happens, you must know how Windows finds executables to run, and how the Python software is installed. The basics:
When running a command, Windows searches for an executable in the environment variable PATH. It executes the first one found.
The Python interpreter, python.exe, is installed in <PYTHON_INSTALL_DIR> (e.g. C:\Python\3.7).
Python tools such as pip, pylint, virtualenv, PyCrust, etc., are installed in <PYTHON_INSTALL_DIR>\Scripts.
The Python launcher for Windows, py.exe, is installed in your Windows system directory (e.g. C:\Windows).
python and pip commands use the modules found in the directory their installed in, they do not look at PATH.
So, let's say you have the following Python versions:
C:\Python\2.7
C:\Python\3.6
C:\Python\3.7
and your PATH environment contains the following directories:
C:\Python\2.7
C:\Python\3.6\Scripts
then, see the following output:
C:\>python -V
Python 2.7.16
C:\>pip -V
pip 19.1.1 from c:\python\3.6\lib\site-packages\pip (python 3.6)
C:\>py -V
Python 3.7.3
So, when running pip, it is possible that the packages are installed in another Python version then the version you'll get when running python.
To see which versions are (correctly) installed on your system, run py -0p. Example output:
C:\>py -0p
Installed Pythons found by py Launcher for Windows
-3.7-64 C:\Python\3.7-64\python.exe *
-3.7-32 C:\Python\3.7-32\python.exe
-3.6-64 C:\Python\3.6-64\python.exe
-2.7-64 C:\Python\2.7-64\python.exe
-2.7-32 C:\Python\2.7-32\python.exe
General solution (for Windows)
The best thing is not to rely on your system PATH. Use the py launcher to select the version you want. To run the pip module corresponding to the Python version you want to use, start pip as a module instead of executable.
So instead of:
pip install <package>
run:
py -3.6 -m pip install <package>
To see which Python packages you have installed for that Python version, use:
py -3.6 -m pip freeze
Some additional remarks
Whether a Python installation is added to your PATH or not, is an option during the installation. If it is added, it is added at the beginning of the PATH, so the most recently installed Python version will be selected first.
The Windows system directory should always be in your PATH, so the py command will always be available, even if you did not add any Python installation to your PATH.
If you double-click on a .py file from Windows Explorer, or type the filename directly as a command in a Command Prompt (e.g. test.py), then the action is determined from the Windows registry. It is possible that the file will be opened in your IDE, or that it's executed using a Python interpreter. In that case, it is probably the most recently installed Python version. It's possible that the command python test.py, uses a different Python version than the command test.py.
Some installations also include executables named python2/python3 (not on Windows), pip3/pip3.7 (also on Windows), etc. This would also allow you to specify which version to use. These would be useful on systems where these binaries exist and are in the path.
You'd think python -m pip install pyaudio would solve the problem but it does not.
To install pyaudio you'd first need to install pipwin using:
pip install pipwin
pipwin is a complementary tool for pip on Windows. pipwin installs unofficial python packages.
Next, use pipwin to install pyaudio,
pipwin install pyaudio
I issue a command to install scipy see below
PS C:\Users\yosief\Downloads> pip install .\scipy-0.16.1-win32-superpack-python3.4.exe
and I get an error-traceback
Invalid requirement: '.\scipy-0.16.1-win32-superpack-python3.4.exe'
It looks like a path. Does it exist?
My ENV variable is set so I can issue pip install from
C:\Users\yosief\Downloads>
even though my python path is:
C:\Users\yosief\AppData\Local\Programs\Python\Python36-32
Thanks
There might be nothing wrong with the file path. Your problem is with the package you are attempting to install.
This will fail because You are running Python 3.6 and you are attempting to install a Python 3.4 package.
You have three options to fix this problem:
1) Just try pip install and the package name you want. No need to download first it does it for you!
OR:
2) Get the correct file. From what I see you are running it should be a 32bit Windows 3.6 (or 36) version package. Everything must match
3) If you can't find your version but the package is Python 3 supported you can download the source and run python setup.py install and it should install.
This question already has answers here:
How to use pip with Python 3.x alongside Python 2.x
(11 answers)
Closed 6 years ago.
I am trying to install the yweather module for python 3.5 on my mac using pip install, however as i have both python 3.5 and 2.7 i don't know how to specify which distribution to install the module for - how would you do this?
pip will install a module for the default python on your system. If you want to be sure that pip installs for a specific version, use pip2 or pip3 instead of pip.
Also if you aren't already, you should consider using virtual environments.
As seen in the docs
Download the most recent release from yweather’s PyPi page. Unpack the
tarball. From inside the yweather-0.X directory
Python 2
python setup.py install
Python 3
python3 setup.py install
new to python installed python 3.5 32-bit on windows 10, used pip to install a module
C:\Users\Lopez\Anaconda3\Scripts>pip install ystockquote
Requirement already satisfied (use --upgrade to upgrade): ystockquote in c:\users\lopez\anaconda3\lib\site-packages
You are using pip version 7.1.2, however version 8.1.2 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
when I go to the IDLE and try the following I get a no module name
import ystockquote
Traceback (most recent call last):
File "", line 1, in
import ystockquote
ImportError: No module named 'ystockquote'
not sure what i am missing, guess its path related but appreciate any feedback
thanks, Juan
Run pip --version and check the Python version and start IDLE and check the Python version and see if they match.
If not, use explicit pipx.y matching IDLE or start IDLE from a Python matching plain pip.
thanks for your help guys,
I beleive the issues where with adding paths to my environment variables not the version of pip. I managed to get this working using the window pip install once i installed python 3 in a custom directory C:\Python35 rather than the deafault long windows suggested path
Instructions
In the Control Panel, search for Environment; click Edit the System Environment Variables. Then click the Environment Variables button.
In the User Variables section, we will need to either edit an existing PATH variable or create one. If you are creating one, make PATH the variable name and add the following directories to the variable values section as shown, separated by a semicolon. If you’re editing an existing PATH, the values are presented on separate lines in the edit dialog. Click New and add one directory per line.
C:\Python35-32;C:\Python35-32\Lib\site-packages\;C:\Python35-32\Scripts\