I have both python2 and python3 on my mac but when I go to install matplotlib it installs on the python2 anaconda version. How do I install it on the python3 version for my mac. I have seen something in windows where you go to where the installation is before you run the terminal code, but I am new to all this so I'm not sure. Appreciate any help. Thx.
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I'm trying to upgrade pip install to 22.3. I keep getting this error, "default to user install because normal sit-packages is not writeable."
I'm at the cmd prompt in win10 trying to install.
This came about because I'm trying to install pypdf2 and this won't install to python that's in my environment path. So I'm stumped.
Thanks for any help.
Unfortunately, I just uninstalled conda & the vanilla python. I reinstalled just plain python for now.
I think originally I did not use venv properly and maybe my conda & vanilla pythons could have been mixed? Not sure. But my vanilla 3.11 is working now and I do some more work.
Thanks for the help.
You can try to install it with the --user flag, which will install it to your user directory instead of the system directory. This is not recommended, but it will work.
pip install --user pypdf2
could you please advise me of a solution you may know for downloading PostgreSQL. I am trying to install 9.6.5 version, but also tried the 10.0, same error.
I am using an installation option for Mac operating system OS Sierra from website: https://www.openscg.com/bigsql/postgresql/installers.jsp/
I am getting an error:
Have tried to run the instruction sudo easy_install pip in the command line and it installs the pip file successfully. However I am still unable to install the PostgreSQL.
Please could you advise what the issue may be?
I have also installed Homebrew (it did not help).
I do already have anaconda and Python installed, as well as latest versions of R and RStudio.
I have now found a solution to the above problem (on Mac). Execute the following command in your terminal:
sudo easy_install-2.6 pip
If that does not work execute:
sudo easy_install-2.7 pip
This allows the PostgreSQL to be downloaded correctly.
I followed the instructions suggesting using easy_install-2.7 but still got an error very similar to that from the OP. I had to specifically install pip 9.0.0 with
sudo easy_install-2.7 pip=9.0.0
after which the PostgreSQL install worked.
The default pip is now v10, so it's probably a string compare issue in the installer.
Here is the solution that worked for me on Mac High Sierra 10.13.4:
Clear out the brew cache $ rm -rf ~/Library/Caches/Homebrew
Clear out the site-packages $ sudo rm -rf /usr/local/lib/python2.7/site-packages
Reinstall Python $ brew reinstall python This pulls down python-3.5.6.high_sierra and put it in /usr/local/bin/python3
But which python still shows /usr/bin/python
The solution is to run $ brew install python#2 which pulls down python#2-2.7.14_3.high_sierra
Now which python shows the correct path /usr/local/bin/python which is also where all your pip stuff is installed, so now pip will work.
Ensure the latest version of pip is installed with $ sudo pip install --upgrade pip
I can install other packages, but can't install Scrapy. I get the following errors:
warning: build_py: byte-compiling is disabled, skipping.
running build_ext
building 'lxml.etree' extension
error: Microsoft Visual C++ 10.0 is required (Unable to find vcvarsall.bat).
However, C++ is installed, which I installed numerous of times. I have x86 and 64 bit installations (not sure if it's 10.0) but I have 2013-2017 versions installed.
Please upgrade your pip by following command.
python -m pip install --upgrade pip
Then install Scrapy by following command.
pip install Scrapy
download latest twisted package and install with pip.
https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
after that install scrapy
In my case, I found that pywin32 was not installed...
So I did
download the latest Twisted package from https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
You want to use the amd64 if you have Windows 64 (regardless if it's an Intel processor or not)
You can use any browser for the download and copy/paste the file into the project folder of your current pycharm project.
Then in pycharm type this:
pip install Twisted-20.3.0-cp39-cp39-win_amd64.whl
(assuming that your package was Twisted-20.3.0-cp39-cp39-win_amd64.whl)
then proceed with:
pip install Scrapy
I have the Python 3.6 and Qt 5.8 on my Windows, I want to install PyQT5.
I downloaded
sip-4.19.zip
and
PyQt5_gpl-5.7.1
and I don't know what should I do next
I've found some posts talking about "Developer Command Prompt for VS2012" but I didn't install VS2012 on my PC. should I install it first ?
Using pip as follows should do the trick:
pip install PyQt5
I've searched everywhere I could and I couldn't find appropriate answer. I don't know how to install numpy so I could use it in Geany with python 3.1.2. It only works for python 2.6.5. I'm new to ubuntu.
edit: I get ImportError: No module named numpy
If python 3.1.2 is installed via python3 package then you could try:
$ sudo apt-get install python3-numpy
Tried the apt-get installation solution above but it didn't work, however, pip did work:
$ sudo pip3 install numpy
Also, here are the install instructions for pip if needed.