>>> assert 1 == 1 >>> assert 1 == 0 Traceback (most recent call last): File "<stdin>", line 1, in <module> AssertionError >>> >>> assert 1 == 0, 'One does not equal zero silly!' Traceback (most recent call last): File "<stdin>", line 1, in <module> AssertionError...
4.2 数字比较 num1=10num2=20ifnum1.equals(num2):print("num1 equals num2")else:print("num1 does not equal num2") 1. 2. 3. 4. 5. 6. 7. 上述代码中,我们比较了两个数字10和20,由于数字不相等,所以equals()函数返回False,最终输出"num1 does not equal num2"。 4.3 列表比较 list1=[1...
>>> assert 1 == 0 , 'One dose not equal zero silly!' Traceback (most recent call last): File "<stdin>", line 1, in <module> AssertionError: One dose not equal zero silly! 用try-except语句捕获AssertionError异常: >>> try: ... assert 1 == 0, 'One does not equal zero silly!
一旦所有流都被处理,note字典将返回给父函数: defparse_snt_file(snt_file):ifnotolefile.isOleFile(snt_file):print("This is not an OLE file")returnNoneole = olefile.OleFileIO(snt_file) note = {}forstreaminole.listdir():ifstream[0].count("-") ==3:ifstream[0]notinnote: note[stream[0]...
andasassertasyncawaitbreakclasscontinuedefdelelifelseexceptFalsefinallyforfromglobalifimportinislambdaNonenonlocalnotorpassraisereturnTruetrywhilewithyield Python二级考试涉及到的保留字一共有22个。选学5个:None、finally、lambda、pass、with。 Python中的保留字也是大小写敏感的。举例:True为保留字,而true则...
import, this is no longer necessary (but code that does it still works). This will append site-specific paths to the module search path. On Unix (including Mac OSX), it starts with sys.prefix and sys.exec_prefix (if different) and appends ...
Python does this in constant time without having to scan through every item by using hash functions. When Python looks up a key foo in a dict, it first computes hash(foo) (which runs in constant-time). Since in Python it is required that objects that compare equal also have the same ...
A string can be non-empty but contain only whitespace characters. To handle this, you might want to useif not my_string.strip()to check for the presence of non-whitespace characters. How does strip() work in checking for an empty string?
How to handle indexes on other axis (or axes).ignore_index : bool, default FalseIf True, do not use the index values along the concatenation axis. Theresulting axis will be labeled 0, ..., n - 1. This is useful if you areconcatenating objects where the concatenation axis does not ...
This does not affect the cmp argument to attr.s that can be used as a shortcut to set eq and order at the same time. #939 Changes Instantiation of frozen slotted classes is now faster. #898 If an eq key is defined, it is also used before hashing the attribute. #909 Added attrs....