Error in Gym Setup Command:
‘extras_require’ must be a dictionary whose values are strings or lists of strings containing valid project/version requirement specifiers.
Explanation:
When setting up a gym environment in Python, you may encounter this error message related to the ‘extras_require’ parameter. This error occurs when the ‘extras_require’ value is not in the correct format.
The ‘extras_require’ parameter is used in Python setup files (setup.py or pyproject.toml) to specify additional dependencies or extra features that can be installed with the gym package.
The value of ‘extras_require’ should be a dictionary where the keys represent the name of the extra feature, and the values are either strings or lists of strings specifying the required package(s) and version(s) for that feature.
Example:
extras_require = {
'extra_feature': ['package1>=1.0', 'package2'],
'another_extra': 'package3==2.1.0'
}
In the above example, ‘extra_feature’ and ‘another_extra’ are two extra features that can be optionally installed alongside the gym package. ‘extra_feature’ requires ‘package1’ with a minimum version of 1.0 and ‘package2’, while ‘another_extra’ requires ‘package3’ exactly at version 2.1.0.
Make sure to check your gym setup command and ensure that the ‘extras_require’ parameter follows the correct dictionary format and contains valid project/version requirement specifiers.