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I have for example the following list:
['|', u'MOM', u'DAD', '|', u'GRAND', '|', u'MOM', u'MAX', u'JULES', '|']
and want it to be split by the "|" so the result would look like:
[[u'MOM', u'DAD'],[ u'GRAND'], [u'MOM', u'MAX', u'JULES']]
How can I do this? I only find examples of sublists on the net which need a length of the elements
390
Split List Into Sublists Using the array_split() Function in NumPy. The array_split() method in the NumPy library can also split a large array into multiple small arrays. This function takes the original array and the number of chunks we need to split the array into and returns the split chunks.
Method 3: Break a list into chunks of size N in Python using Numpy. Here, we are using a Numpy. array_split, which splits the array into n chunks of equal size.
To split the elements of a list in Python: Use a list comprehension to iterate over the list. On each iteration, call the split() method to split each string. Return the part of each string you want to keep.
>>> [list(x[1]) for x in itertools.groupby(['|', u'MOM', u'DAD', '|', u'GRAND', '|', u'MOM', u'MAX', u'JULES', '|'], lambda x: x=='|') if not x[0]]
[[u'MOM', u'DAD'], [u'GRAND'], [u'MOM', u'MAX', u'JULES']]
itertools.groupby() does this very nicely...
>>> import itertools
>>> l = ['|', u'MOM', u'DAD', '|', u'GRAND', '|', u'MOM', u'MAX', u'JULES', '|']
>>> key = lambda sep: sep == '|'
>>> [list(group) for is_key, group in itertools.groupby(l, key) if not is_key]
[[u'MOM', u'DAD'], [u'GRAND'], [u'MOM', u'MAX', u'JULES']]
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