is_empty.py

from typing import Optional, Sized

from hamcrest.core.base_matcher import BaseMatcher
from hamcrest.core.description import Description
from hamcrest.core.matcher import Matcher

__author__ = "Chris Rose"
__copyright__ = "Copyright 2012 hamcrest.org"
__license__ = "BSD, see License.txt"

class IsEmpty(BaseMatcher[Sized]):
    def matches(self, item: Sized, mismatch_description: Optional[Description] = None) -> bool:
        try:
            if len(item) == 0:
                return True

if mismatch_description:
                mismatch_description.append_text("has %d item(s)" % len(item))

except TypeError:
            if mismatch_description:
                mismatch_description.append_text("does not support length")

return False

def describe_to(self, description: Description) -> None:
        description.append_text("an empty collection")

def empty() -> Matcher[Sized]:
    """
    This matcher matches any collection-like object that responds to the
    __len__ method, and has a length of 0.
    """
    return IsEmpty()

docroot: /var/www/469ed2f6-4d4b-4a8a-9f5e-ee4ef04d3bc8/public_html

curdir: /usr/lib/python3/dist-packages/hamcrest/library/collection

	.	4096
	..	4096
X	__init__.py	844
	__pycache__	4096
X	is_empty.py	1076
X	isdict_containing.py	3620
X	isdict_containingentries.py	5689
X	isdict_containingkey.py	1829
X	isdict_containingvalue.py	1835
X	isin.py	977
X	issequence_containing.py	3424
X	issequence_containinginanyorder.py	3869
X	issequence_containinginorder.py	3833
X	issequence_onlycontaining.py	1841