hpaulj questions

hpaulj answers

• Converting from sparse to dense to sparse again decreases density after constructing sparse matrix
• Can virtual function be private in Python
• Configure argparse to accept quoted arguments
• numpy, taking array difference of their intersection
• numpy.loadtxt is way slower than open.....readlines()
• How to efficiently prepare matrices (2-d array) for multiple arguments?
• python numpy where returning unexpected warning
• Assertion when declaring required arguments with argparse and 'nargs=*' arguments
• Efficient way of making a list of pairs from an array in Numpy
• Parse commandline args in unittest python