Transpose nested list in python
I like to move each item in this list to another nested list could someone help me?
list
Memory errors and list limits?
I need to produce large and big (very) matrices (Markov chains) for scientific purposes. I perform calculus that I put in a list of 20301 elements (=one row of my matrix). I need all those data in memory to proceed next Markov step but i can store them elsewhere (eg file) if needed even if it will slow my Markov chain walk-through. My computer (scientific lab): Bi-xenon 6 cores/12threads each, 12GB memory, OS: win64
How to get the nth element of a python list or a default if not available
I’m looking for an equivalent in python of dictionary.get(key, default) for lists. Is there any one liner idiom to get the nth element of a list or a default value if not available?
Remove trailing newline from the elements of a string list
I have to take a large list of words in the form:
Different ways of clearing lists
Is there any reason to do anything more complicated than one of these two lines when you want to clear a list in Python?
Convert a list with strings all to lowercase or uppercase
I have a Python list variable that contains strings. Is there a function that can convert all the strings in one pass to lowercase and vice versa, uppercase?
Naming conflict with built-in function
I have made a mistake as below:
String to list in Python
I’m trying to split a string:
Append to a list defined in a tuple – is it a bug?
Many operations have an “in-place” version. The following functions
provide a more primitive access to in-place operators than the usual
syntax does; for example, the statement x += y is equivalent to x =
operator.iadd(x, y). Another way to put it is to say that z =
operator.iadd(x, y) is equivalent to the compound statement z = x; z
+= y.