How do I instal wxPython 3 into my Conda Python 2? - python

wxPython 3.0 is not available from pip; They say download it from Sourceforge. The installer from Sourceforge, however, fails with a meaningless error message:
I have tried brew install wxpython, and it installs fine, but Conda Python doesn't pick it up and continues to use the latest version (4) installed via pip.
What can I do?

The solution which I found thanks to Mike Driscoll and nekomatic:
Create a new conda env with Python 2.7.
Install https://anaconda.org/bjornfjohansson/wxpython .
conda install python.app
Use pythonw instead of python.
The last two steps are probably specific to macOS.

Related

update to python 3.7 using anaconda

Python 3.7 alpha version is out, but I haven't been able to find any post on how to update to python 3.7 using Anaconda - maybe they will wait for the official release? Any suggestions?
This can be installed via conda with the command conda install -c anaconda python=3.7 as per https://anaconda.org/anaconda/python.
Though not all packages support 3.7 yet, running conda update --all may resolve some dependency failures.
Python 3.7 is now available to be installed, but many packages have not been updated yet. As noted by another answer here, there is a GitHub issue tracking the progress of Anaconda building all the updated packages.
Until someone creates a conda package for Python 3.7, you can't install it. Unfortunately, something like 3500 packages show up in a search for "python" on Anaconda.org (https://anaconda.org/search?q=%22python%22) so I couldn't see if anyone has done that yet.
You might be able to build your own package, depending on what OS you want it for. You can start with the recipe that conda-forge uses to build Python: https://github.com/conda-forge/python-feedstock/
In the past, I think Continuum have generally waited until a stable release to push out packages for new Pythons, but I don't work there, so I don't know what their actual policy is.
To see just the Python releases, do conda search --full-name python.
The September 4th release for 3.7 recommends the following:
conda install python=3.7 anaconda=custom
If you want to create a new environment, they recommend:
conda create -n example_env numpy scipy pandas scikit-learn notebook
anaconda-navigator
conda activate example_env
run conda navigator, you can upgrade your packages easily in the friendly GUI
conda create -n py37 -c anaconda anaconda=5.3
seems to be working.

getting python pyobcd installed

I'm a little lost on how to get pyodbc installed in my computer.
I have python 3.6.1
The link
http://support.esri.com/en/technical-article/000011656
pointed me to another link
https://github.com/mkleehammer/pyodbc
Which is vague.
I'm used to downloading and running an exe for install.
This link is unclear and says all I have to do is:
"pip install pyodbc"
What exactly do I need to do to get this working?
Since you have not mentioned which OS you are using,
I will assume that you are on windows (as you have mentioned that you are used to install using .exe).
Firstly you need to know what a pip is:
pip is basically a package manager for python packages used to install 3 rd party packages which do not bundle along with the python distribution.
On linux pip comes pre installed also if you are using python version 3.4 onwards or python 2.7.9 you will be having pip pre installed on your system.
All you have to do it to open the command prompt issue the command
pip install package-name(pyobdc here)
it will do the job.
If you do not find pip in your distribution you can refer this link
How do I install pip on Windows?
open cmd in your computer and type
pip install pyobdc
Hello there and welcome to python programming. Basically python comes with its package installer so either you can go to any interpreter that you are using and type pip install pyobdc or use the command prompt in windows and type in pip install pyobdc. This would install your module and just remember to put import pyobdc at the top of the code if you want to use this package. Further information can be found on here

Installing opencv on Windows 10 with python 3.6 and anaconda 3.6

How to install opencv with python 3.6 and anaconda 3.6?
I tried conda install -c https://conda.binstar.org/menpo opencv3
but i get the following error:
UnsatisfiableError: The following specifications were found to be in conflict:
- opencv3 -> python 2.7*
- python 3.6*
Use "conda info <package>" to see the dependencies for each package.
I am using Windows 10 64-bit, with python 3.6, and anaconda 3.6 installed.
Is it even available for python3.6 at the moment or should i rollback my python version to 3.5.*?
search anaconda prompt
open and run the command.
> pip install opencv-python
this single command help's you to install opencv easily.
you can take help from the video link below.
video link
From menpo file page, it shows that the OpenCV 3.2 binary there are only for Python 2.7/3.4/3.5 and on linux-64 platform
You may go to the this site to get the exact version you need.
opencv_python‑3.2.0‑cp36‑cp36m‑win_amd64.whl is the basic one.
opencv_python‑3.2.0+contrib‑cp36‑cp36m‑win_amd64.whl is the one
with opencv-contrib modules such as the text module for binding to tesseract OCR engine and many others.
Both binary are for OpenCV 3.2 with Python 3.6 binding for Windows 64-bit. To install it, 1) download the binary to local drive, 2) open your Anaconda command prompt and 3) type the command below in the directory the binary locates.
pip install opencv_python‑3.2.0+contrib‑cp36‑cp36m‑win_amd64.whl
Hope this help.
Update on 2018-02-22:
OpenCV 3.4.0 wheel files are now available in the unofficial site and replaced OpenCV 3.3.0
Update on 2019-01-30:
OpenCV 4.0.1 wheel files are now available in the unofficial site with CPython 3.5/3.6/3.7 support.
I managed to get it working by doing the following:
Download and install python3.6 from official python site
https://www.python.org/downloads/release/python-360/
Download and install Anaconda 4.4.0 from the official anaconda site
https://www.continuum.io/downloads
Open command line and run:
pip install opencv-python
Open command line and run:
pip install opencv-contrib-python
I am using Windows 10 and it worked for me.
It's pretty simple..
Install Anaconda 3.6. Check anaconda is added to System Variable Path.
Open CMD and type conda install -c conda-forge opencv.
This will install latest OpenCV version available (3.6).
Open IDE editor and try import cv2.
It will probably don't work...don't worry.
You have to add cv2 command to editor.
For Eclipse (with PyDev):
Create firs a project and then do the following:
For PyCharm:
cv2 module probably won't work. Go to the Anaconda folder/Lib/site-packages/cv2 and copy the file cv2.cp36-win_amd64.pyd to the site-packages folder. Rename it cv2.pyd
Now try to write a command... cv2.imread(). If auto-completition don't work, try cv2.cv2.imread().
This will work for sure.
I am using Python 3.6.2 and Anaconda 4.3.23 (It should also work with your case).
I did the following:
Download the Numpy version corresponding to your Python installation from here. In my case, I’ve used numpy-1.13.1+mkl-cp36-cp36m-win_amd64.whl
Download the OpenCV version corresponding to your Python installation from here. In my case, I’ve used opencv_python-3.3.0-cp36-cp36m-win_amd64.whl
Now go to the folder where you downloaded these files and run the following:
pip install numpy-1.13.1+mkl-cp36-cp36m-win_amd64.whl
pip install opencv_python-3.3.0-cp36-cp36m-win_amd64.whl
Note the Successfully installed … message after each command.
At this point, you should be able to play with OpenCV and Python. Let’s try a small test first. Start the Python interpreter or Jupyter Notebook and write:
import cv2
print(cv2.__version__)
If everything was correctly installed, you should see the version number of your OpenCV install, in my case this was 3.3.0.
I see you found a solution but this may be helpful for others. The package is not available for Python 3.6. You can check this by going to that package channel on anaconda.org and selecting the files tab. You will see the package tarballs with the Python version listed as py27, py34, py35,etc. This is a good way to check for Python versions of a specific package.
You can also run the following to see the package versions and Python versions available for your OS from the Anaconda channel:
conda search <package_name>
Or to search a particular channel and package you can do this:
conda search -c <channel_name> <package_name>
As of March 2018, OpenCV 3.4 can be installed directly from conda-forge or anaconda in Windows/OSX/Linux for Python 3.6
conda install -c conda-forge opencv
or
conda install -c anaconda opencv
Using:
conda install -c conda-forge opencv
worked for me
If you have installed anaconda then you should uninstall it, then try
pip install opencv_python‑3.2.0+contrib‑cp36‑cp36m‑win_amd64.whl
It worked for me.
Thank You.
I am using python 3.6 and the following worked for me:
Download and install opencv (Win pack) on your computer from the official website:
https://opencv.org/releases.html (I took version 3.4.2)
Go to the website of Christoph Gohlke and download the wheel file corresponding to your system. (I took opencv_python-3.4.2-cp36-cp36m-win_amd64.whl)
As mentioned on the website of Christoph Gohlke, make sure you installed 'numpy1.14' & 'mkl' package. Also make sure you use pip with version 9 or newer.
Start the 'Anaconda Prompt'
Change the directory in the 'Anaconda Prompt' to the folder where you downloaded the wheel file from Gohlke's website (via the MS-DOS command 'cd').
In the 'Anaconda Prompt' type 'pip install opencv_python-3.4.2-cp36-cp36m-win_amd64.whl') (change the name of the wheel file accordingly).
When starting spyder, test your installation as follows:
import cv2
print(cv2.__version__)
If the version is printed in the console (in my case 3.4.2), your installation was successful.
IMPORTANT REMARK:
If you created a dedicated environment within Anaconda (in my case 'py36'), make sure you installed spyder for this dedicated environment ('conda install spyder'). If not, your installation of opencv will not be recognised within the environment you are working in. Maybe this is obvious and straightforward but in my case I struggled to find this solution.
First Download Anaconda Python 3.6 from official site. After installing anaconda, simply open command prompt and type following statement and press enter of course -
conda install -c conda-forge opencv
It may take some time. After the completion, check your conda packages by typing conda list - opencv should be there.
However, Before proceed to install opencv, you can check whether opencv for python 3.6 is available or not. We can check it by typing conda info opencv in command prompt and press enter of course, you'll see following -
opencv 3.3.1 py36h20b85fd_1
---------------------------
file name : opencv-3.3.1-py36h20b85fd_1.tar.bz2
name : opencv
version : 3.3.1
build string: py36h20b85fd_1
build number: 1
channel : https://repo.anaconda.com/pkgs/main/win-64
size : 96.7 MB
arch : None
constrains : ()
license : BSD 3-clause
license_family: BSD
md5 : e65c68524073445511ace8ade7ae3641
platform : None
subdir : win-64
timestamp : 1512689066576
url : https://repo.anaconda.com/pkgs/main/win-64/opencv-3.3.1-py36h20b85fd_1.tar.bz2
dependencies:
jpeg >=9b,<10a
libpng >=1.6.32,<1.7.0a0
libtiff >=4.0.9,<5.0a0
numpy >=1.11.3,<2.0a0
python >=3.6,<3.7.0a0
vc 14.*
zlib >=1.2.11,<1.3.0a0
By this we can also get ensure that opencv 3.3.1 py36h20b85fd_1 is available. And this is available for python 3.6
I think this way is straight forward. Just install anaconda from official page and follow the image.
Using Anaconda3's package manager directly will be more reliable and cross-platform:
conda install opencv

Python 2.7.11 pip not installed

I have Python 2.7.11 installed on my machine which to my understanding should come with pip, however when I check the C:\Python27\Tools\Scripts\ directory there is no pip.exe present.
I have tried completely removing and reinstalling Python 2.7.11 without success. Running the installer pip is set to be installed, but after the install pip is nowhere to be found.
I also have Python 3.4 installed which has pip as expected. Any thoughts?
I encountered the same problem - pip not installed - with python-2.7.16, Win10, installing for 'all users'. It was resolved when I allowed the MSI installer to target the default location (C:\Python27) rather than changing it to under Program Files (x86). I've no clue why this changed anything.
python2.7.11 should install pip into c:\python27\scripts, you can take a look here
I used https://pip.pypa.io/en/stable/installing/ to make it install. Odd that an outside body has to make a tool to get pip to install. There is no mention of pip.pypa.io on the Python web site.
Although I got error messages, it did install, so check carefully.
You also may see a message suggesting that you upgrade to pip 9.0 with the command 'pip install --upgrade.' I highly recommend that.
Also, make sure you are in the directory where pip.exe is located when you run the commands. They don't tell you that, because they assume you know that, but we're not all geeks.
For people who are running into this issue, I have a Windows 10 x86 dev box that I use for exploit development, Python 2.7 was installed due to Immunity Debugger, this install did not include the new SSL package and did not include "pip".
There was no "C:\Python27\Scripts" folder which included pip. I did have a "C:\Python27\Tools\Scripts" folder which did not have pip installed.
I tired to install pip as suggested but did not work. Best way is to uninstall Python and install newest version, currently mine is 2.7.15 which came with pip as an option. This is what solved my issue, any older version of Python will need upgraded to support the SSL packages. You will receive the same errors when you try to install pip on an older version.
If you have reinstalled Python which included the SSL package and it still does not have pip, trying installing pip this way:
1. curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
2. python get-pip.py
https://pip.pypa.io/en/stable/installing/
This should work if you have a newer version of Python.
Once you have installed pip or newer version of python, go to "C:\Python27\Scripts" and you should see pip.exe.
I have installed "python-2.7.16" in my windows 10 PC. PIP is installed under "C:\Python27\Scripts". One can add the "C:\Python27\Scripts" path to environment variable and then access pip command from command prompt.
To add the path in environment variable:
Control Panel\System and Security\System --> Advanced System Settings --> Advanced --> enviroment variables --> under system variable --> Path(variable name)
Had the issue where no matter which version of python 2.7 I installed on windows 10 there was no pip.exe generated in the "Scripts" folder.
I solved it by ensuring that that MSI Installer file had Admin privileges before installing
if pip is not installed you can use easy_install.exe to install pip and other modules
you can find easy install in
python -m easy_install pip
I had the same issue:
Installed Python 27
Tried to use pip, but failed with unrecognized command error
Checked installation: no "C:\Python27\Scripts", only "C:\Python27\Tools\Scripts"
This issue happens only on some versions of Windows.
HOW TO FIX IT:
Uninstall Python 27
Reinstall Python 27, but unselect "pip" feature
Check installation: no "C:\Python27\Scripts" as expected
Start the installer again and use "Change Python"
Set "pip" and "Add Python.exe to Path" features to be installed
Check installation: "C:\Python27\Scripts" is now correctly present
So for some unknown reason, pip is not correctly installed on some versions of Windows if it is installed during default Python 27 setup. To fix this issue, pip must be installed afterwards using the "Change Python" setup.
I meet the same issue when install Python 2.7.9. The installer does not come with pip.
Solution:
Install newer python2 x86 version: https://www.python.org/downloads/release/python-2718/
Then pip is located at C:\Python27\Scripts\pip.exe
It happens on windows as you should have admin rights to install anything on disk C.
I have the same issue Scripts folder was not installed. I would sugest to instal it on disk D.

How do I make a clean install of Anaconda for Mac?

I am using Anaconda/Jupyter with Python 2.7. However, I need to upgrade to Python 3. I tried the advice in How to install 2 Anacondas (Python 2.7 and 3.4) on Mac OS 10.9 but that gave me a "Package missing" error, which I could not resolve. Also, on the conda site, they advice that one can do the following:
conda install python=3.5
but this just shows me which specifications are in conflict. There are 8 of them, and it seems like a of work and potential for mishaps to try to resolve all of those, and instead, I would like to remove the current anaconda and do a clean install of it with Python 3.5. But I can't find any information on how to do that.

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