O'Reilly Introduction to Python/Section 1/OSX set up Python: Difference between revisions
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[[File:Python-logo.png|300px]] |
[[File:Python-logo.png|300px]] |
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We are going to install Python version 3.4.1. |
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Lucky for us, OS X comes with Python installed! All we need to do is make sure we have an appropriate version of Python installed and make sure we can start a Terminal and run Python from the command line. |
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If you already have Python installed, check the Python version: if the version number starts with a 3 (as opposed to a 2), you can use it for this class and can skip to [[O%27Reilly_Introduction_to_Python/Section_1/OSX_set_up_Python#Checking_your_Python_installation|checking your Python installation]]. |
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If you need help or have questions during this step, [[Skillshare intro to Python/Asking questions| don't hesitate to ask]]! |
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__TOC__ |
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== Download and install Python == |
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* <b>If you are running OS X version 10.6 or later</b>, click https://www.python.org/ftp/python/3.4.1/python-3.4.1-macosx10.6.dmg to download the Python installer. |
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* <b>If you are running OS X version 10.5</b>, click and download the Python installer from [https://www.python.org/ftp/python/3.4.1/python-3.4.1-macosx10.5.dmg this link instead]. |
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* <b>If you have a version of OS X older than 10.5</b>, please upgrade to a newer version of OS X before installing Python. |
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Once the download is complete, double-click on the installer to run it and complete the installation. |
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== Checking your Python installation == |
== Checking your Python installation == |
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<br /> |
<br /> |
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This |
This terminal is another way of navigating your computer and running programs -- just textually instead of graphically. We are going to be running Python and Python scripts from this Terminal prompt. |
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</li> |
</li> |
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<li>Test your Python install at the command prompt. Type |
<li>Test your Python install at the command prompt. Type |
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<pre> |
<pre> |
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python3 |
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python |
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</pre> |
</pre> |
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and press Enter. You should see something like |
and press Enter. You should see something like |
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<pre> |
<pre> |
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Python |
Python 3.4.1 (v3.4.1:d047928ae3f6, May 13 2013, 12:45:22) |
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[GCC 4.2.1 (Apple Inc. build 5646)] on darwin |
[GCC 4.2.1 (Apple Inc. build 5646)] on darwin |
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Type "help", "copyright", "credits" or "license" for more information. |
Type "help", "copyright", "credits" or "license" for more information. |
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You just started Python! The <code>>>></code> indicates that you are at a new type of prompt -- a Python prompt. The command prompt let's you navigate your computer and run programs, and the Python prompt lets you write and run Python code interactively.<br /> |
You just started Python! The <code>>>></code> indicates that you are at a new type of prompt -- a Python prompt. The command prompt let's you navigate your computer and run programs, and the Python prompt lets you write and run Python code interactively.<br /> |
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Check the Python version in your Terminal output (the version in the example above is 2.7.5). It needs to be a version between Python 2.5 and Python 2.7 for this class. If you have too old or too new a version, please visit http://python.org/ftp/python/2.7.5/python-2.7.5-macosx10.6.dmg to download and install Python version 2.7.5. |
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[[File:Champagne.png|100px]][[File:Party.png|125px]] |
[[File:Champagne.png|100px]][[File:Party.png|125px]] |
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[[ |
[[O'Reilly Introduction to Python/Section 1|« Back to the Section 1 main page]] |
Latest revision as of 07:00, 24 January 2015
We are going to install Python version 3.4.1.
If you already have Python installed, check the Python version: if the version number starts with a 3 (as opposed to a 2), you can use it for this class and can skip to checking your Python installation.
Download and install Python
- If you are running OS X version 10.6 or later, click https://www.python.org/ftp/python/3.4.1/python-3.4.1-macosx10.6.dmg to download the Python installer.
- If you are running OS X version 10.5, click and download the Python installer from this link instead.
- If you have a version of OS X older than 10.5, please upgrade to a newer version of OS X before installing Python.
Once the download is complete, double-click on the installer to run it and complete the installation.
Checking your Python installation
- Start up a Terminal. You can find the Terminal application through Spotlight, or navigate to Applications/Utilities/Terminal.
This terminal is another way of navigating your computer and running programs -- just textually instead of graphically. We are going to be running Python and Python scripts from this Terminal prompt. - Test your Python install at the command prompt. Type
python3
and press Enter. You should see something like
Python 3.4.1 (v3.4.1:d047928ae3f6, May 13 2013, 12:45:22) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>>
You just started Python! The
>>>
indicates that you are at a new type of prompt -- a Python prompt. The command prompt let's you navigate your computer and run programs, and the Python prompt lets you write and run Python code interactively.
- To exit the Python prompt, type
exit()
and press Enter. This will take you back to the OS X terminal prompt.
Success!
You have tested your Python installation.