# Test data for `test_zipfile`
The test executables in this directory are created manually from header.sh and
the `testdata_module_inside_zip.py` file. You must have infozip's zip utility
installed (`apt install zip` on Debian).
## Purpose
These are used to test executable files with an appended zipfile, in a scenario
where the executable is _not_ a Python interpreter itself so our automatic
zipimport machinery (that'd look for `__main__.py`) is not being used.
## Updating the test executables
If you update header.sh or the testdata_module_inside_zip.py file, rerun the
commands below. These are expected to be rarely changed, if ever.
### Standard old format (2.0) zip file
```
zip -0 zip2.zip testdata_module_inside_zip.py
cat header.sh zip2.zip >exe_with_zip
rm zip2.zip
```
### Modern format (4.5) zip64 file
Redirecting from stdin forces infozip's zip tool to create a zip64.
```
zip -0 <testdata_module_inside_zip.py >zip64.zip
cat header.sh zip64.zip >exe_with_z64
rm zip64.zip
```
