Doctest output simpler version (#7116)

* Update README.md

Added Google Cirq references

* Create barcode_validator.py

Barcode/EAN validator

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update barcode_validator.py

Included docstring and updated variables to snake_case

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update barcode_validator.py

Included docset and updated bugs

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update barcode_validator.py

Implemented the changes asked in review.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update barcode_validator.py

Updated with f-string format

* Update barcode_validator.py

* Update volume_conversions.py

Simpler doctest output

* Update volume_conversions.py

Fixed indentation

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

Author: 3 people

conversions/volume_conversions.py

@@ -52,11 +52,7 @@ def volume_conversion(value: float, from_type: str, to_type: str) -> float:
     0.000236588
     >>> volume_conversion(4, "wrongUnit", "litre")
     Traceback (most recent call last):
-      File "/usr/lib/python3.8/doctest.py", line 1336, in __run
-        exec(compile(example.source, filename, "single",
-      File "<doctest __main__.volume_conversion[7]>", line 1, in <module>
-        volume_conversion(4, "wrongUnit", "litre")
-      File "<string>", line 62, in volume_conversion
+        ...
     ValueError: Invalid 'from_type' value: 'wrongUnit'  Supported values are:
     cubicmeter, litre, kilolitre, gallon, cubicyard, cubicfoot, cup
     """