I couldn't find anything about this so Im asking here: I want to create an alias in IPython which itself uses an IPython-magic-function.
That means: I often need to to retype
%run process.py
thus I'd like to create an alias like this:
%alias rp %run process.py
the creation works, but when calling rp, it says, that the command %run could not be found. Any ideas about how to do this?
Try this:
When you enter the IPython console, type %run process.py
Then you can use the %macro magic to bind rp to %run process.py.
Do so with the In storage of inputs.
%run process.py
%macro rp In[-2]
Should work!
%macro can also be used to cover a range of inputs, using the syntax %macro name range - where range can be an integer or integers in the form start-end.
For instance, if you wanted to time two functions with a single command you can specify the line ranges.
Define functions:
In[20]: def foo(x): return x
In[21]: def bar(x): return x*x
Time functions:
In[22]: %timeit foo(100)
10000000 loops, best of 3: 137 ns per loop
In[23]: %timeit bar(100)
10000000 loops, best of 3: 194 ns per loop
Bind macro to name time_fb:
In[24]: %macro time_fb 22-23
Macro bound:
Macro `time_fb` created. To execute, type its name (without quotes).
=== Macro contents: ===
get_ipython().magic('timeit foo(100)')
get_ipython().magic('timeit bar(100)')
Check it works:
In[25]: time_fb
10000000 loops, best of 3: 135 ns per loop
10000000 loops, best of 3: 192 ns per loop
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