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How can I trim leading and trailing white space?
I am having some troubles with leading and trailing white space in a data.frame.
13 Answers
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Get the data received in a Flask request
...ing request data as string in case it came with a mimetype Flask does not handle.
request.args: the key/value pairs in the URL query string
request.form: the key/value pairs in the body, from a HTML post form, or JavaScript request that isn't JSON encoded
request.files: the files in the body, whi...
User recognition without cookies or local storage
I'm building an analytic tool and I can currently get the user's IP address, browser and operating system from their user agent.
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Why does this iterative list-growing code give IndexError: list assignment index out of range?
... a list with its elements set to a null value (None in the example below), and later, overwrite the values in specific positions:
i = [1, 2, 3, 5, 8, 13]
j = [None] * len(i)
#j == [None, None, None, None, None, None]
k = 0
for l in i:
j[k] = l
k += 1
The thing to realise is that a list obj...
What is SOA “in plain english”? [closed]
...sh what is SOA all about ? I hear SOA here, SOA there but I cannot understand exacly what it is and what is used for. Was it some simple concept and later evolved into something huge or what?
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How to get indices of a sorted array in Python
... 2), (2, 3), (3, 100), (4, 5)]
You sort the list by passing it to sorted and specifying a function to extract the sort key (the second element of each tuple; that's what the lambda is for. Finally, the original index of each sorted element is extracted using the [i[0] for i in ...] list comprehens...
How to maintain a Unique List in Java?
... no duplicate elements. More formally, sets contain no pair of elements e1 and e2 such that e1.equals(e2), and at most one null element. As implied by its name, this interface models the mathematical set abstraction.
Note: Great care must be exercised if mutable objects are used as set elements...
When should I use Kruskal as opposed to Prim (and vice versa)?
I was wondering when one should use Prim's algorithm and when Kruskal's to find the minimum spanning tree? They both have easy logics, same worst cases, and only difference is implementation which might involve a bit different data structures. So what is the deciding factor?
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Showing all errors and warnings [duplicate]
...iguration option will keep this new value during the script's execution , and will be restored at the script's ending .
– jave.web
Dec 8 '14 at 22:04
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Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
...a few minutes ago I was horrified to discover VS2012's omission of macros, and you posted this 11 hours before I got here!
– Shaul Behr
Nov 13 '12 at 11:11
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