¡@
python Programming Glossary: some_conditionPassing Python slice syntax around to functions http://stackoverflow.com/questions/13706258/passing-python-slice-syntax-around-to-functions some slice of a list. def get_important_values some_list some_condition slice elems filter some_condition some_list return elems slice.. some_list some_condition slice elems filter some_condition some_list return elems slice This works fine if I manually pass.. return something directly sliceable such as filter some_condition some_list which will be the whole result as a list. In my actual..
How references to variables are resolved in Python http://stackoverflow.com/questions/20246523/how-references-to-variables-are-resolved-in-python and thus may raise UnboundLocalError here x foo def f if some_condition x 42 print x f Now this rule doesn't work for class level scopes.. want to read the local x of the previous line class Y if some_condition x 42 print x # may refer to either the local x or some global..
Is it possible to modify lines in a file in-place? http://stackoverflow.com/questions/5453267/is-it-possible-to-modify-lines-in-a-file-in-place an example script that removes lines that do not satisfy some_condition from files given on the command line or stdin # usr bin env.. on the command line or stdin # usr bin env python # grep_some_condition.py import fileinput for line in fileinput.input inplace True.. fileinput for line in fileinput.input inplace True if some_condition line print line # this goes to the current file Example python..
|