Fixing onnx saving path bug

[ahmedlone127]

FIxes saving of Onnx models on windows

Description

Currently, Onnx models can't be saved on windows because of the temporary path being used. This PR fixes the temporary path by replacing the character which can raise an exception while saving

How Has This Been Tested?

Tested locally by saving models and reloading them on windows

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Code improvements with no or little impact
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING page.
• I have added tests to cover my changes.
• All new and existing tests passed.

[DevinTDHa]

@maziyarpanahi @ahmedlone127 I pushed a fix, which addresses the underlying issue.

The reason why it used to work for TF but not for onnx is the following:

In tf we always had a name for the graph already defined (saved_model.pb). We don't have that. Somewhere down the line we passed the whole path to onnxWrapper.saveToFile(onnxFile). The method saveToFile then receives this whole path and creates another tmp folder with it, which appends the whole path (pretty deep nesting).

• In unix this is ok as we have paths that start with /.
• In Windows however it starts with the drive. So we have something like C:/tmp_uuid/C:/tmp_uuid2 which causes this issue.