I'm struggling with Anaconda Python distribution. I installed it first months ago, but now I need to use TensorFlow which is not officially supported (and updated) within the Anaconda distribution.
I installed then a new Python distribution (Python-3.5) and tried to use it, instead of Anaconda, to run the above mentioned library. I have some issues though 'cause the Conda has set as default Python distribution its own one.
I saw in this discussion Using two different python distributions that my goal could be achieved by setting an alias like 'pyconda='/path/to/your/anaconda/bin/python'' in my .bash_profile file.
The problem is that I have no such a file under my home (and I tried to insert a brand new one and run simple aliases like 'alias cd="cd /c"' to see if it could work but it does not).
Could someone please give me an hint?
Thx in advance to all of you!
For Anaconda, my best suggestion, if not already tried, would be to use their graphical installer.
For TensorFlow installation, I would recommend using Pip
Hope this helps !
Related
I’m trying to figure out how to install a second python environment alongside anaconda.
On windows I can just install python in a different folder stand reference the desired python environment using env variables. I’d like to do the same on Mac.
A virtual env won’t do the trick as it does not copy the standard library and other things. It needs to be a complete stand alone environment. I guess I could compile it, but is there an easier way?
Thank you very much for any input.
You can do that using pyenv.
It allows you to have several python versions, and even different distributions.
It works, mostly on user space. So, no additional requirements are needed (apart from compilation tools)
Yesterday I've been trying to install Python 3.8.5. I got the installer from the python website. My problem is that whenever I run python --version in the command line, it keeps saying, like in the image above, Python 2.7.17.
Today I also installed the Microsoft store package, and it's the same.
But running py apparently gives me the correct version 3.8.5. Does this mean that every python program I'll write will use the current version? That's what I currently want to make sure of.
As a side note also, I uninstalled all other python versions except 3.8.5 that I saw in my settings>Apps list. So, that adds to my confusion why running python --version would still show 2.7.17.
Maybe not as relevant, but I also have WSL2 enabled on my machine, I would like to install python to both. At the moment I'm focusing on the Windows10 part, but if there's a solution that will help both, that'll be awesome.
Thanks in advance!
[update]: adding python3 --version screenshot
[update]: yet another confusing part for me:
should I just let this be?
Is this something I need to straighten up first before moving forward?
are my python programs going to be ran in version 3.8.5 and not
2.7.17?
I know my answer is very late but i see a lot of people facing this problem. So if you want to interact with the latest Python version in your command prompt, you just need to set newer (or which one you want) Python path variable above/before other Python version's path variables. This solution also helped me a lot with other path problems.
This is a problem with your PATH environment variable being set incorrectly. I'm guessing that you installed Python 3 globally, after you had Python 2.7 installed. Whenever you do this and have the option Add to PATH checked, it will overwrite the default python location to the new install, thus causing Python 3 to now open instead. You can change this back manually by changing the value in PATH.
I'd suggest using something like pipenv to manage your python versions and respective libraries, that will create a sandbox for your application to run in and will always point to the correct dependencies.
Ok, so hopefully this fixes every question I had. Hopefully comments will assure me that is so.
What I did was, delete the environment variables relating to Python 27. Found the Python3.exe path and added that to the path variable. Not exactly sure how that works, but it did give me the outcome I wanted to see.
As someone who is just getting started with programming and installing Python, I am looking for an answer to an installation question that hopefully doesn't involve much coding itself. This is the bottleneck that is keeping me from utilizing Python and downloading spyder, pandas etc. that I need to learn for work.
In trying to install Anaconda on my Windows PC, I am getting an error
enter image description here. Basically, it says that if I want Anaconda registered as my system Python, that I unregister this earlier Python first. This earlier Python was installed as a default part of the Pymol program installation package, which I use for structural analysis.
Based on reading the one question that has asked this on stack exchange in the past, it sounds like this means that python has already been integrated on my Windows and now when I try to code, the system will need to figure out whether I would like to do so in the Anaconda environment or with the non-anaconda Python. My questions are a) how do I unregister this other python? b) should I just uninstall the whole Pymol program (and with it, the python)? c) If I say "ok" to this prompt and download Anaconda, will this cause problems with my existing Python installation or will it not matter in the end?
I also tried emailing Anaconda support a few times before realizing that they don't provide individual support unless you're an enterprise user.
Would appreciate any and all advice on this issue so I can move forward. Thanks very much.
You don't need to unregister your previous PYTHON installation. Edit your SYSTEM PATH should fix this. In case your anaconda is before your other python installation, or remove your older Python for it at all. How to set your PATH ?, check hier:
I have two python versions on my computer 2.7 and 3.4.1 . I have tried to install numpy by pip3.4 which resulted with vcvarsall.bat not found which i am pretty sure it is included in system path. Then i gave up downloaded numpy binary numpy-1.8.1-win32-superpack-python3.4.exe. And during the installation it tells me that numpy cannot find python 3.4 in the registry which i see that it is there also.
HKEY_LOCAL_MACHINE
-SOFTWARE
--Python
---PythonCore
----2.7
-----Help
-----InstallPath
-----Modules
-----PythonPath
----3.4
-----Help
-----InstallPath
-----Modules
-----PythonPath
so what has left me to do from here? My system is windows 7 64 bit.
There is an easier fix, remove and re-install python, in the beginning of python setup when you are asked if you want to install python for all users or just this user, select this user only.
That way the registry goes into current user by default and can be found easily by successive software packages. Tried it myself, worked like a charm.
Just a simpler option for technologically less literate people like myself.
But if you need it for multiple users on a PC then you have got to edit the registry and put it in manually, from local machine to current user. Copy it like explained in previous comments.
When installing numpy on Windows you have to ensure that you are using a .exe for the corresponding Python installation.
As you're using Python 3.4.1 you have to use an installer for Python 3.4.1. The installer that you were using was last modified on 25th March which is before 3.4.1 was released. This suggests it was for 3.4.0 and so will not work.
If you need up-to-date Windows installers for numpy (as well as a large host of other packages) they can be found here.
This steps work for me with windows 8.1 64bits
The problem is that some module installers look in the wrong place for Python version information.
For example, in the case of this one module, the installer was looking for HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.4 in the registry.
I found that my Python 3.4 installer had placed this information in HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\3.2 instead.
Once you know the reason, solving it is easy.
Open Registry Editor (may need administrator privilege) and export HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\3.4 into a text file.
Open the exported .reg file in a text editor and replace the HKEY_LOCAL_MACHINE entries to HKEY_CURRENT_USER.
Add these new entries back to the registry (here is how).
The module installer should now be able to proceed without throwing the error.
ref: http://codeyarns.com/2012/04/28/python-version-not-found-in-registry-error/
I have just faced a similar issue ("numpy cannot find python 3.4 in the registry") when installing numpy-1.9.1-win32-superpack-python3.4.exe. The solution was to install the python-3.4.2.msi instead of python-3.4.2.amd64.msi.
You are trying to install the 32 bit version of numpy on a 64 bit installation of python. It doesn't look to me like you can download 64bit scipy from sourceforge so a solution is to install a 32bit version of python.
Abilio Faria gave the answer. Another answer in another thread over here
I think the changing of the registry works quite well.
Worked wonders for me... quick fix:
http://codeyarns.com/2012/04/28/python-version-not-found-in-registry-error/
I have been trying for 3 days now with now luck, I really am desperate.
I have installed NumPy, along with matplotlib. I am trying to include matplotlib into my applications, but it does not work. I am using Eclipse with the PyDev plug-in, but whenever I try to import it, I get an error, even though I have added it to the libraries that it needs to import every time.
I am a beginner with Linux and I don't really know how to do stuff of the top of my head. I would like to know if this is related to PYTHONPATH and if so, how can I change it?
Also, when running whereis matplotlib, I get matplotlib: usr/share/matplotlib.
EDIT
Even though I did not manage to solve the problem, nor am I interested any more, I consider this question closed. I have decided to use the free version of PyCharm, as suggested by #FooBarUser.
On my Ubuntu 12.04, modules like these are installed in /usr/local/lib/python2.7/dist-packages. Adding that to PYTHONPATH may help resolve the issue.In my ~/.bashrc I have
export PYTHONPATH=...
export PYTHONPATH=/usr/local/lib/python2.7/dist-packages:$PYTHONPATH
export PYTHONPATH=
Edit: if you also have Python 3 installed on your system, numpy might also be in
/usr/lib/pyshared/python2.7/numpy
If the latest version of numpy was built to be backwards compatible with both 2.7 and 3.*, the installer might put it in that directory which is meant for packages which can be shared across multiple python version numbers.