This question already has answers here:
How to change the path of Python in Spyder?
(5 answers)
Closed 4 years ago.
I am new to configuring and setting up Python from scratch.
I have installed Anaconda and I plan to use Spyder for python development. I also have a older version of Python installed on the same machine elsewhere.
I needed to get my hands on a package to use in Spyder which I needed to download and install.
I downloaded and installed pip directly from the website and then I used this in the command line of the older python install to obtain the package I required.
However I don't understand how I go about making this available to Spyder. I believe it works on a folder structure within it's own directory and I am unsure how to change this to get the package I have already downloaded.
I thought I might be able to copy it across, or point it at the directory where the package was downloaded to but I cannot work out how to do this.
I also tried using pip from within Spyder to work but it cannot find it.
Can you please let me know what I need to check?
from the command line can you use pip? Btw I believe python 3 comes with pip included anyway you need to make sure it's in your path
Find pip.exe on your computer, then add its folder (for example, C:\Python27\Scripts) to your path (Start / Edit environment variables). Now you should be able to run pip from the command line. Try installing a package:
pip install httpie
Try to:
Open Anaconda Prompt and then do: pip install whatever - to install wheels
If you want to install spyder the open Anaconda Navigator - and you should be in the home tab - then highlat spyder and press install - thats all.
There are other ways but within spyder ipython console you can install package like.
In [1]: import pip
In [2]: pip.main(['install', 'module-name'])
Related
This question already has answers here:
How to install pygame?
(4 answers)
Unable to install Pygame using pip
(27 answers)
Closed 22 days ago.
I can't use pygame package in Pycharm. I have installed it with pip but I can not use it. When I tried to install it from the error that appeared in the IDE or from 'Python Packages', it gave me an error. I also tried pip install pygame --pre and it's not working. It says that 'Requirement already satisfied:' but I still can not use it. What should I do?
You should be able to left click on the module. It will display a download packages button. You need internet but should be able to download it. You don't to use the command prompt to install packages. That is only for the python IDLE.
Go here and click install. Pycharm using his own registry of packages.
https://imgur.com/a/AZvsBxJ
So, you're using PyCharm, it likely means it has created a new virtual environment when you created your project, to install packages in that environment it's easiest to either use PyCharm's Package Manager or Terminal. In the case of using Python 3.11 you'd need to supply the --pre flag when installing pygame because the full release of 2.1.3 has not yet been released and 2.1.3.dev8 which is a pre release is the latest one that has 3.11 wheels for installation. More information about that particular thing can be found here: https://stackoverflow.com/a/74188087/14531062
So, on PyCharm you'd want to use the Terminal:
When you switch to it, you'll likely find that it basically is PowerShell (unless you have changed it to use CMD which I doubt) (you'll see PS at the start of each line) so the easiest steps to install pygame would be to type in these commands in this order (press the enter key after each line):
cmd
venv\scripts\activate
pip install pygame --pre
After running these commands pygame should be installed in the correct environment and you should be able to import it without any issues.
Screenshot of how it might look when you follow the steps:
This is probably a really dumb question but I am stuck and wasting too much time on this so I would SO appreciate any help.
I am using a RHEL 7 box and installed Apache Zeppelin on it. Everything works except for the life of me I can't import Python packages such as Pandas.
I realized I didn't have PIP so I installed it with these steps: https://pip.pypa.io/en/stable/installing/ (notice I had to use the "--user" argument for the command "python get-pip.py").
Finally, I did "pip install pandas --user" which worked perfectly. I then go into my Zeppelin notebook and I cannot import pandas, even after restarting the Python interpreter.
I did some research and I think the problem is that "which python" and "which pip" are installed in different directories as the former results in "/usr/bin/python" while the latter in "~/.local/bin/pip".
So I suspect the packages installed with pip are basically getting loaded into a different version of python? If it helps, when I do "whereis python" I get 5 different results such as "/usr/bin/python" and "/usr/bin/python2.7" etc.
First thing to understand is: Python packages aren't installed globally, every installed Python has its own set of packages. BTW, pip being a Python package with a script is also not global. If you have a few different pythons you need different pips for them. I don't know Apache Zeppelin so I cannot guess if it uses the system Python (/usr/bin/python) or has its own Python; in the latter case you need to install pip specifically for Zeppelin so its pip install packages available for Zeppelin.
To investigate to what Python pip installs packages you need to find out under what python it runs. Start with shebang:
head -1 `which pip`
The command will prints something like ~/.local/bin/python. If it's not the version of Python you need to install packages for you need to install a different pip using that Python.
The most complex case would be if the shebang is PATH-dependent, something like #!/usr/bin/env python. In that case pip runs Python that you can find with which python.
PS. AFAIK the simplest way to install pip at RedHat is dnf install python-pip.
phd's answer was very helpful but I found that it was just a matter of using the root account to install the python packages. Then my Zeppelin was able to see any packages.
I am installing python on windows10 and trying to install the opencv and numpy extentions in the command window. I get no error installing them and it says it is successfully installed. But when I try to check the installation and import cv2 it does not recognize it and give me the error: no module named cv2.
can anybody help me with this problem? Is there something wrong in installation process or do I need to install something else?
I checked the newest version of each and used the compatible one with my system.
Thanks.
One solution could be that you have 2 versions of python. So, go to the specific python's scripts directory and run: pip install numpy
If that too doesn't work, you can find the answers to this question on Why can't I import opencv3 even though the package is installed?, as stated by #Cut7er.
I have tried the solutions given to the above stated question myself also. But, they didn't work for me. So, another thing that you could try to use is this IDE called PyCharm. It ofcourse is much more beautiful that the IDLE, but it also has an inbuilt GUI controlled installation of binaries or packages. That would make things a lot easier. I have faced a lot of issues with packages for python and this IDE made things a lot easier. You can find it on https://www.jetbrains.com/pycharm/download/#section=windows.
You can also use anaconda. But, I found it a little difficult to use since, it has similar issues.
EDIT:
Seems like you are using PyCharm. But, you are installing libraries from your command prompt. So, see the answer to: ImportError: No module named 'bottle' - PyCharm. This answer guides you through how to install a certain library through your PyCharm window itself. So,
1) Go to Files>Settings
2) Search for "Interpreter" from the searching tab. Open the interpreter
3) You can now see a plus sign on the right. A click on it will open up a section on the left.
4) In the searching tab, search for numpy or opencv. Click on whichever module you want to install. And then click on the "install package" button on the bottom left. This will install the package for you.
5) Then click save. And run your file that says import cv/cv2.
This should probably do the trick.
Hope it helps!
Is it possible that you have 2 versions of python on your machine and your native pip is pointing to the other one? (e.g. you pip install opencv which installs opencv for python 2, but you are using python 3). If this is so, then use pip3 install opencv
I removed the Anaconda version on my machine, so I just have python 3.7 installed. I removed the python interpreter(Pycharm) and installed it again and the problem got fixed somehow!
I suspect you have two versions of python and the one you're using doesn't have opencv on it, because pip pointed to the wrong one.
A pragmatic solution assuming you're using the python version with conda is to just use conda to install cv2:
conda install -c menpo opencv
A more careful solution is to figure out how to get the pip that points to the python version you're using. On linux I can check that my pip points to my python like this:
:~$ which python
/home/kpierce/anaconda3/bin/python
:~$ which pip
/home/kpierce/anaconda3/bin/pip
So you see the pip and python versions are associated. On windows I suspect you do an analogous thing on the command line like
where python
where pip
And if they don't match, you might try
where python
where pip3
to see if those match. You need to use the pip that points to the correct python version. You can view the python version by entering the python interpreter and running
import sys
sys.version
I am trying to install Pygame for Python 3.5.1, but it tells me to upgrade to the new version of pip. "You are currently using 7.1.2, use 8.1.2".
Here is a screen shot of it:
The error clearly states Access Denied.
Try to run cmd/powershell as administrator.
The installation error is not because of pip , though you should still upgrade pip
python -m pip install --upgrade pip
Pygame does not have python3.5 support yet. Check the binaries here
Pygame binaries
Try to use Python version 3.4 or 2.7 and then install pygame.
EDIT
You can find unofficial pygame binaries for several Python versions including Python3.5 here.
So if you do not find the official binary, you could try the appropriate file from the above link.
Note: The binaries given there are whl files. So you need to install them using pip.
Example: Assuming you have 32-bit Python installation, run pip install pygame-1.9.2b1-cp35-cp35m-win32.whl
See this answer for more detailed instructions.
Pip seems to be having a permission problem creating this directory: c:\program files (x86)\python35-32\Lib\site-packages\pygame
Here are some things you can try:
Navigate to that directory and see if it already exists. If it does exist, then try deleting it.
Try running pip as an administrator. Right click the command prompt icon and select run as administrator. Your path variables might not be set for the administrator, so you many need to give the full path for pip. In your python folder, it should be in a folder called scripts.
Since you're using Windows, you can also try the binary installers here: http://www.pygame.org/download.shtml
If nothing works you can try installing a different version of Python. I use Python 2.7.8 with pygame.
It was a problem based on the admin command run program and I figures it out.
I am trying to install pandas via pip install pandas but when I do, I get the error:
Command python setup.py egg_info failed with error code 1 in
c:\users[username]\appdata\local\temp\pip_build_[username]\pandas
I followed the answer given here and installed ez_setup.py without incident, but still get the error when doing pip install pandas.
Thanks for any help, if I can provide more information please let me know.
The easiest way to install pandas and its dependencies on Windows is to download the relevant packages from Christoph Gohlke's Python Extension Packages for Windows repository. You'll find the files for pandas here as well as a list of other required dependencies.
On Linux (Debian / Ubuntu varieties), when NOT installing inside a virtual environment, but in the main system, I find it best to just use the Synaptic Package Manager (because even the --user switch seems to fail when trying to install pandas without sudo). Search for pandas inside Synaptic PM. There's varieties for python 2 and 3.
However, on linux, I have generally found the cleanest, easiest, and overall safest approach to be creating virtual environments and then use pip install <package name> inside the virtual environment. I believe this would be best on Windows too.
I installed Pandas package following procedure listed after the following disclaimer section:
Disclaimer:
- I don't consider myself a computer expert so follow the instructions at your own risk.
- My procedure worked on my windows computer
- My windows computer has python 2.7 installed from python.org
- My python GUI is IDLE
- I don't recall installing pip, it is possible that it installs at the time of installing python 2.7 from python.org (not sure)
- The directory in which my pip.exe is located is under C:\Python27\Scripts
Procedure:
Open a command window for the directory under which you have pip.exe, (in my case is Scripts). The prompt looks like this in my case: C:\Python27\Scripts>
At the prompt type pip install pandas. The prompt looks like this in my case: C:\Python27\Scripts>pip install pandas
Press ENTER key. You should see message: "Collecting pandas" being displayed in the command window.
Once the system completes collecting pandas, you should see message "Successfully installed pandas-0.22.0" , or similar depending on version collected.
Picture shows steps 1 -4 as shown in my computer command window.collecting_pandas