Add password strength check (#983)

* Add password strength check

* Delete time.sleep and log, use the select class instead

* Ignore W503 in flake8

* Solve some problems of the password strength check algorithm

Part of the code was written by @phisch. This code tries to measure the strength of the user's password and suggests that the password is weak.

* rename function

* Restore the flake8 configuration file to its previous state

1 files changed, 1 insertions, 1 deletions

diff --git a/.flake8 b/.flake8
index c3377d24..d9fb938e 100644
--- a/.flake8
+++ b/.flake8
@@ -7,4 +7,4 @@ max-line-length = 236
 show-source = True
 statistics = True
 per-file-ignores = __init__.py:F401,F403,F405 simple_menu.py:C901,W503 guided.py:C901
-builtins = _
+builtins = _
\ No newline at end of file