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Python Build a Social Network with Flask Making Strong Users Cryptographic Hashing with Flask-Bcrypt

Kevin Gravett
Kevin Gravett
11,167 Points
Posted by Kevin Gravett
Kevin Gravett
11,167 Points

Python crashes when using bcrypt

I didn't see any questions/answers addressing this problem and I'm pretty much lost.

I'm working on the 'Build a Social Network with Flask' course and using my personal computer at home, rather than Workspaces.

My computer:

  • OS is Windows 8.1
  • Python 3.4

I've taken almost every other Python course on Treehouse and I have had zero problems up to this point.

I pip installed bcrypt, no problems. I can import generate_password_hash() and check_password_hash(), as well. But when I actually use generate_password_hash(), I get a Windows popup message saying "python.exe has crashed" and lists the following information in the 'details' section:

Problem signature:

Problem Event Name: APPCRASH

Application Name: python.exe

Application Version: 0.0.0.0

Application Timestamp: 5423549b

Fault Module Name: _bcrypt.pyd

Fault Module Version: 0.0.0.0

Fault Module Timestamp: 555d875b

Exception Code: c0000005

Exception Offset: 0000000000001e81

OS Version: 6.3.9600.2.0.0.768.101

Locale ID: 1033

Additional Information 1: 1a7e

Additional Information 2: 1a7eb186431f409fe7bc4bbaff90dcf2

Additional Information 3: dcaa

Additional Information 4: dcaa3148b5e128493d6d131df1487a49

I don't get any error data from python, it just crashes as soon as generate_password_hash() is called. Any guidance provided would be greatly appreciated.

1 Answer

Max Hirsh
Max Hirsh
16,773 Points
Max Hirsh
Max Hirsh
16,773 Points

So I looked up that exception code online and found this forum post: http://www.windowsbbs.com/legacy-windows/40538-what-causes-exception-code-c0000005-access_violation.html

It sounds like windows raises that when a program tried to access forbidden memory or something. I would recommend checking if pip is up to date:

https://pip.pypa.io/en/latest/installing.html#upgrade-pip

try installing bcrypt again (to upgrade to the latest package): https://pip.pypa.io/en/latest/user_guide.html#installing-packages

and if that doesn't work I would recommend reinstalling python: http://stackoverflow.com/questions/19548957/can-i-force-pip-to-reinstall-the-current-version

If all that fails, I would try using workspaces. I've heard Windows 8.1 can be buggy and difficult to work with at times. If this is a big problem and you still want to use that machine for developing python/flask apps with bcrypt, you could consider upgrading to Windows 10 (which is free now) or dual booting/switching to Linux. I will say that my experience installing Linux as a dual boot OS on my windows computer was pretty bad, it took up an entire weekend and was more complicated than the instructions let on.