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Proper error handling for nbformat versions in client code....
Proper error handling for nbformat versions in client code. 1. Users are warned when an older nbformat notebook is converted. 2. The notebook notifies the user when a notebook that is too new is attempted to load. To test these things, create a simple notebook. Then change its nbformat field by hand to 2 (to test 1) and then 4 (to test 2).

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test_ipdoctest.py
80 lines | 1.7 KiB | text/x-python | PythonLexer
"""Tests for the ipdoctest machinery itself.
Note: in a file named test_X, functions whose only test is their docstring (as
a doctest) and which have no test functionality of their own, should be called
'doctest_foo' instead of 'test_foo', otherwise they get double-counted (the
empty function call is counted as a test, which just inflates tests numbers
artificially).
"""
from IPython.utils.py3compat import doctest_refactor_print
@doctest_refactor_print
def doctest_simple():
"""ipdoctest must handle simple inputs
In [1]: 1
Out[1]: 1
In [2]: print 1
1
"""
@doctest_refactor_print
def doctest_multiline1():
"""The ipdoctest machinery must handle multiline examples gracefully.
In [2]: for i in range(4):
...: print i
...:
0
1
2
3
"""
@doctest_refactor_print
def doctest_multiline2():
"""Multiline examples that define functions and print output.
In [7]: def f(x):
...: return x+1
...:
In [8]: f(1)
Out[8]: 2
In [9]: def g(x):
...: print 'x is:',x
...:
In [10]: g(1)
x is: 1
In [11]: g('hello')
x is: hello
"""
def doctest_multiline3():
"""Multiline examples with blank lines.
In [12]: def h(x):
....: if x>1:
....: return x**2
....: # To leave a blank line in the input, you must mark it
....: # with a comment character:
....: #
....: # otherwise the doctest parser gets confused.
....: else:
....: return -1
....:
In [13]: h(5)
Out[13]: 25
In [14]: h(1)
Out[14]: -1
In [15]: h(0)
Out[15]: -1
"""