Installing a package to Canopy

Question

I'm really new to coding, programming, Python, and just computers in general, so I need some help with Canopy. I've been having pretty consistent troubles installing any packages to Canopy; some stuff is in the internal package manager,but whenever it isn't, it's really confusing. I guess I'll list a specific installation.

I'm trying to install "pywcs" (link provided below) to my Win7 64-bit machine. I have Cygwin if that helps at all. I do not know how to go about this; the stuff I found online is pretty confusing, and Cygwin easy_install (filename) never seems to work. Any step-by-step solutions?

I tried python (filename) install, but I get the error "can't find '_main_' module in (filename) — vdogsandman, Jul 08 '13 at 18:20
Hi! It seems `pywcs` has a compatibility problem somewhere. I'm trying to install it, and can import it, but it raises an AttributeError. Can you give me another package I can test the installation procedure on? — Sukrit Kalra, Jul 08 '13 at 18:22
Aah, python astropy-0.2.3.tar install gives the same "can't find main module" error. — vdogsandman, Jul 08 '13 at 18:35
I successfully installed `astropy` on Enthought. Posting the details in a moment. — Sukrit Kalra, Jul 08 '13 at 18:36

score 9 · Accepted Answer · answered Jul 08 '13 at 18:41

9

The way I installed astropy is as follows.

Open Windows Terminal
Change Directory to C:\Users\<USER NAME>\AppData\Local\Enthought\Canopy32\User\Scripts
Type easy_install.exe astropy
Wait until the download completes, and restart Enthought.

Astropy

answered Jul 08 '13 at 18:41

Sukrit Kalra

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Hmmm it seemed to install, but it still doesn't read the module in Canopy. Is there a fix for that? EDIT: I use Canopy 64-bit, so that might be the problem. I'll update this comment if it works under that directory. – vdogsandman Jul 08 '13 at 19:38
Would a similar installation procedure work for pygame? http://www.pygame.org/download.shtml – vdogsandman Jul 08 '13 at 22:09
Didn't work for me, and astropy *isn't* included in Canopy, at least in 1.1.0. Also, installing astropy like that only works for 32 bit, as it then uses the exe from pypi. There's no 64 bit exe there yet. – letmaik Dec 30 '13 at 20:13
While this answer should work, it is incomplete and can be misleading. For more context, see https://support.enthought.com/entries/23389761-Installing-packages-into-Canopy-User-Python-from-the-OS-command-line – Jonathan March Oct 11 '14 at 12:23

score 3 · Answer 2 · answered Jul 28 '17 at 14:32

sometimes installing packages can be hard for enthought canopy . You could install all python packages using pip install mrjob command on the its own canopy command prompt

Go to tools tab on the canopy editor ,
Left click on the canopy command prompt ,
Finally pip install <package name> and hit Enter key

score 2 · Answer 3 · answered Jul 08 '13 at 19:50

The key point is that in order to install a package into any Python distribution (including Canopy Python), you should use that Python to perform the installation. You refer to Cygwin's "easy_install", but you should instead use Canopy's easy_install.

As described in this article, the easiest way to be sure that you are running Canopy's Python (and Canopy's easy_install) is to have Canopy Python on your PATH. This is done by default during Canopy installation, but if you uncheck this option then, or if your Cygwin installation doesn't use your Windows PATH, then you will need to adjust your Cygwin PATH accordingly.

Doing as Sukrit suggests, and running the installation from the Canopy Python Scripts directory, is also a reasonable approach.

Alternatively, depending on its compiler dependencies, you may be able to install astropy from a Windows Command Prompt rather than from Cygwin (of course Canopy must be on the PATH here too, as it would be by default.)

Thank you, this has been really helpful and educational! – vdogsandman Jul 08 '13 at 22:09 — vdogsandman, Jul 08 '13 at 22:09

score 0 · Answer 4 · answered Sep 11 '13 at 06:47

In Linux you can do it as follows.

1) Make sure you are using the Canopy version of Python - check out https://support.enthought.com/entries/23389761-Installing-packages-into-Canopy-User-Python-from-the-command-line

2) At the command prompt use easy_install, for example:

$ easy_install pp==1.5.7

to install version 1.5.7 of pp

score 0 · Answer 5 · answered Sep 28 '13 at 13:12

0

Just for information, Astropy is now included by default in Enthought Canopy:

https://www.enthought.com/products/canopy/package-index/

answered Sep 28 '13 at 13:12

astrofrog

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Installing a package to Canopy

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