Data can take many shapes and forms - and it's oftentimes represented as strings. Show
Table of Contents
Be it from a CSV file or input text, we split strings oftentimes to obtain lists of features or elements.
Split String into List in PythonThe By default, the delimiter is set to a whitespace - so if you omit the delimiter argument, your string will be split on each whitespace. Let's take a look at the behavior of the
Our string had elements delimited with a comma, as in a CSV (comma-separated values) file, so we've set the delimieter appropriately. This results in a list of elements of type
Split String into List, Trim Whitespaces and Change CapitalizationNot all input strings are clean - so you won't always have a perfectly formatted string to split. Sometimes, strings may contain whitespaces that shouldn't be in the "final product" or have a mismatch of capitalized and non-capitalized letters. Thankfully, it's pretty easy to process this list and each element in it, after you've split it:
This results in:
No good! Each element starts with a whitespace and the elements aren't properly capitalized at all. Applying a function to each element of a list can easily be done through a simple Since we're not only looking to capitalize the first letter but also keep the rest lowercase (to enforce conformity), let's define a helper function for that:
The method takes a string, slices it on its first letter and capitalizes it. The rest of the string is converted to lowercase and the two changed strings are then concatenated. We can now use this method in a loop as well:
This results in a clean:
Split String into List and Convert to IntegerWhat happens if you're working with a string-represented list of integers? After splitting, you won't be able to perform integer operations on these, since they're ostensibly be strings. Thankfully, we can use the same
Check out our hands-on, practical guide to learning Git, with best-practices, industry-accepted standards, and included cheat sheet. Stop Googling Git commands and actually learn it! Which now results in:
Split String into List with LimiterBesides the delimiter, the It's an integer and is defined after the delimiter:
Here, two splits occur, on the first and second comma, and no splits happen after that:
ConclusionIn this short guide, you've learned how to split a string into a list in Python. You've also learned how to trim the whitespaces and fix capitalization as a simple processing step alongside splitting a string into a list. How do you split a list into two in Python?This can be done using the following steps:. Get the length of a list using len() function.. If the length of the parts is not given, then divide the length of list by 2 using floor operator to get the middle index of the list.. Slice the list into two halves using [:middle_index] and [middle_index:]. How do I separate a list from a list in Python?The split() method of the string class is fairly straightforward. It splits the string, given a delimiter, and returns a list consisting of the elements split out from the string. By default, the delimiter is set to a whitespace - so if you omit the delimiter argument, your string will be split on each whitespace. How do you separate a list?Usually, we use a comma to separate three items or more in a list. However, if one or more of these items contain commas, then you should use a semicolon, instead of a comma, to separate the items and avoid potential confusion. How do you split a list into N parts in Python?array_split() to split a list into n parts. Call numpy. array_split(list, n) to return a list of n NumPy arrays each containing approximately the same number of elements from list . Use the for-loop syntax for array in list to iterate over each array in list . |