brookman1

Changed the context manager for reliability, seems like __enter__ / __exit__ methods are simpler to read sometimes. Removed the stdout prints. Added threaded test -- threaded tests are not fully...

Changed time.sleep to condition.wait()

2

`time.sleep(n)` is a kernel call that pauses the entire Python interpreter, Python threads a virtual. Using `condition.wait(n)` lets the other threads execute while waiting, this bypasses the **GIL** (global interpreter...

Nees a more threaded solution for sleep

1

Python has a consent of GIL since threads in Python are virtual. time.sleep stops execution of all the threads, so uses in Flask / Django / Twisted Matrix [used in...

Grader fails on all tests, seems like type info is getting lost, isfinite datatype check can't be applied.

1

The graded function specifically returns: ```python return covariance_matrix.astype('float64') ``` not sure how the grader changes the type, this is failing for all 4 tests. ``` ====================================================================== ERROR: test_cov (week1_tests.Test) ----------------------------------------------------------------------...