Qiskit / qiskit / 7733162349

89%

main: 88%

Build Type

push

github

Committed by web-flow

Commit Message

Poison import if `qiskit-terra` detected (#11618)

* Poison import if `qiskit-terra` detected

This uses `importlib.metadata` to search for installations of
`qiskit-terra` at runtime, and poison the import if one is detected.
The two packages are incompatible in a way that we cannot express to
`pip` without having poisoned the `qiskit-terra` package as a whole,
which is something we're less willing to do in order to keep it easier
to install old versions of Qiskit-dependent software, and to keep the
Qiskit 1.0 packaging story clean for the coming years.

`qiskit>=1.0` and `qiskit-terra<1.0` both attempt to install files in
the same directories, so we can't do the detection by looking at the
Qiskit version; we'll likely get whichever was installed second if
they've both been installed to `site-packages`, or otherwise, whichever
comes first on the search path.  This uses the distribution component of
`importlib.metadata` to detect installed _distributions_ rather than
imported files, allowing us to distinguish `qiskit` from `qiskit-terra`.

* Add shortlink to migration guide

* Do not error on dirty build directory

* Match 0.45 error message

Run Details

7 of 11 new or added lines in 1 file covered. (63.64%)

5 existing lines in 1 file now uncovered.

59393 of 66363 relevant lines covered (89.5%)

218913.98 hits per line