Clarify hidden source code claims

[simaoafonso-pwt]

The documentation mentions the source code is hidden when compiling executables.

https://pyinstaller.readthedocs.io/en/stable/operating-mode.html#hiding-the-source-code

However, on runtime when the program exists with an exception, the traceback includes the filename and line numbers for the compiled code.

File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "PyInstaller/loader/pyimod03_importers.py", line 531, in exec_module
  File "main.py", line 4, in <module>
  File "<REDACTED_FILE>", line 423, in entrypoint

Encrypting the bytecode does nothing.

Where is this information stored, and can I remove it from the generated binaries?

[rokm]

The full filename leaking in tracebacks is a bug that's been (hopefully) resolved in develop branch.

If you consider tracebacks to be still revealing too much information about your code (line numbers, function and module names), then either disable traceback or handle the exception yourself.

[simaoafonso-pwt]

The full filename leaking in tracebacks is a bug that's been (hopefully) resolved in develop branch.

That seems to be b9fcbbf(#5563), thanks.

The sys.tracebacklimit option seems to be what I was looking for, thanks for the pointer. Closing this.