iPython Example

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Category: iPython

Published: 28 October 2014

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quit() or Ctrl + D quits the IPython shell.

Using in cmd

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C:\Program Files>ipython -pylab
WARNING: `-pylab` flag has been deprecated.
Use `--matplotlib <backend>` and import pylab manually.
Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:45:13) [MSC v.1600 64 bit (AMD64)]
Type "copyright", "credits" or "license" for more information.

IPython 2.3.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
Using matplotlib backend: TkAgg

In [1]: quit()

C:\Program Files>



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Using PowerShell

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PS C:\Users\Tom> ipython -pylab
WARNING: `-pylab` flag has been deprecated.
Use `--matplotlib <backend>` and import pylab manually.
Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:45:13) [MSC v.1600 64 bit (AMD64)]
Type "copyright", "credits" or "license" for more information.

IPython 2.3.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
Using matplotlib backend: TkAgg

In [1]: quit()
PS C:\Users\Tom>


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Using Git

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Tom@TOM-GATEWAYPC ~/Web-Project/GitHub/git-project (master)
$ ipython -pylab
WARNING: `-pylab` flag has been deprecated.
Use `--matplotlib <backend>` and import pylab manually.
Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:45:13) [MSC v.1600 64 bit (AMD64)]
Type "copyright", "credits" or "license" for more information.

IPython 2.3.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
Using matplotlib backend: TkAgg

In [1]: quit()

Tom@TOM-GATEWAYPC ~/Web-Project/GitHub/git-project (master)
$

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Details

Category: iPython

Published: 28 October 2014

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Saving a session:
%logstart

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In [1]: %logstart
Activating auto-logging. Current session state plus future input saved.
Filename : ipython_log.py
Mode : rotate
Output logging : False
Raw input log : False
Timestamping : False
State : active

In [2]:


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Details

Category: iPython

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%logoff
switched off as follows
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In [2]: %logoff
Switching logging OFF

In [3]:


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Details

Category: iPython

Published: 28 October 2014

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Starting a notebook with the following code:
ipython notebook
The notebook is opened in your default browser
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PS C:\Users\Tom> ipython notebook
2014-10-28 14:05:57.151 [NotebookApp] Using existing profile dir: 'C:\\emacs\\.ipython\\profile_default'
2014-10-28 14:05:57.198 [NotebookApp] Using MathJax from CDN: https://cdn.mathjax.org/mathjax/latest/MathJax.js
2014-10-28 14:05:57.385 [NotebookApp] Serving notebooks from local directory: C:\Users\Tom
2014-10-28 14:05:57.385 [NotebookApp] 0 active kernels
2014-10-28 14:05:57.385 [NotebookApp] The IPython Notebook is running at: http://localhost:8888/
2014-10-28 14:05:57.385 [NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirm
ation).



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Starting a notebook with the following code:
ipython notebook --pylab

This loads the Scipy, NumPy, and Matplotlib modules.
The notebook is opened in your default browser

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PS C:\Users\Tom> ipython notebook --pylab
2014-10-28 14:30:59.300 [NotebookApp] Using existing profile dir: 'C:\\emacs\\.ipython\\profile_default'
2014-10-28 14:30:59.300 [NotebookApp] WARNING | Starting all kernels in pylab mode is not recommended,
and will be disabled in a future release.
Please use the %matplotlib magic to enable matplotlib instead.
pylab implies many imports, which can have confusing side effects
and harm the reproducibility of your notebooks.
2014-10-28 14:30:59.347 [NotebookApp] Using MathJax from CDN: https://cdn.mathjax.org/mathjax/latest/MathJax.js
2014-10-28 14:30:59.440 [NotebookApp] Serving notebooks from local directory: C:\Users\Tom
2014-10-28 14:30:59.440 [NotebookApp] 0 active kernels
2014-10-28 14:30:59.440 [NotebookApp] The IPython Notebook is running at: http://localhost:8888/
2014-10-28 14:30:59.440 [NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirm
ation).



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Details

Category: iPython

Published: 28 October 2014

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ipython notebook --pylab inline
Display inline Matplotlib plots with the inline directive, using the following command:

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PS C:\Users\Tom> ipython notebook --pylab inline
2014-10-28 14:40:29.267 [NotebookApp] Using existing profile dir: 'C:\\emacs\\.ipython\\profile_default'
2014-10-28 14:40:29.269 [NotebookApp] WARNING | Starting all kernels in pylab mode is not recommended,
and will be disabled in a future release.
Please use the %matplotlib magic to enable matplotlib instead.
pylab implies many imports, which can have confusing side effects
and harm the reproducibility of your notebooks.
2014-10-28 14:40:29.309 [NotebookApp] Using MathJax from CDN: https://cdn.mathjax.org/mathjax/latest/MathJax.js
2014-10-28 14:40:29.406 [NotebookApp] Serving notebooks from local directory: C:\Users\Tom
2014-10-28 14:40:29.406 [NotebookApp] 0 active kernels
2014-10-28 14:40:29.406 [NotebookApp] The IPython Notebook is running at: http://localhost:8888/
2014-10-28 14:40:29.407 [NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirm
ation).

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1. Create a notebook: Click on the New Notebook button to create a new notebook:
2. Create an array: Create an array with the arange function. Type the command in the following screenshot, and press Enter:
a = arange(7)

3. Next, enter the following command and press Enter
a

4. Output

Out[4]: array([0, 1, 2, 3, 4, 5, 6])

5. Next, enter the following command and press Enter

plot(sinc(a))