How开发者_开发问答 do I replace all the Nones with empty strings, and then call some function f?
I am trying to create a new list via a list comprehension but want those new values to be included in an existing list.
Comprehensions show unusual interactions with scoping. Is this the expected behavior? x = "original value"
I have a list of dictionaries, and I want to use it to create another list of dictionaries, slightly amended.
Given these 2开发者_JAVA技巧 lists L2 = [A,B,C,D,A,B] L3 = [3,2,1,2,2,1] I want to obtain L2_WANTED = [A,B,C,D]
I have a list that will always contain only ones and zeroes. I need to get a list of the non-zero indices of the list:
[Python 3.1] Edit: mistake in the original code. I need to print a table. The first row should be a header, which consists of column names separated by tabs. The following rows should contain the da
I had this: if Setting[\"Language\"] == \"en\": f.m_radioBox3.SetSelection(0) elif Setting[\"Language\"] == \"pt\":
Sorry, I just found the id = [conn.cursor() for x in range(100) ] also works, so my concern will not be a problem anymore.
I would like to efficiently compute the size of a filtered list, i.e., I don\'t want to keep the whole filtered list in memory, I just want to get its size. Is there a more \"pythonic\" way than compu
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