You can use theenumerate()function to iterate over a list and get both the index and the corresponding value. For example,enumerate(courses)returns pairs of index and corresponding value during each iteration of theforloop. The loop variableindexrepresents the index of the current element, andcou...
def get_max(my_list): running_max_index = 0 # Iterate over index-value pairs. for index, item in enumerate(my_list): if item >= my_list[running_max_index]: running_max_index = index return running_max_index, my_list[running_max_index] 在一个新的单元格中,调用这个函数来测试不同...
DataFrame.itertuples([index, name])Iterate over DataFrame rows as namedtuples, with index value as first element of the tuple. DataFrame.lookup(row_labels, col_labels)Label-based “fancy indexing” function for DataFrame. DataFrame.pop(item)返回删除的项目 DataFrame.tail([n])返回最后n行 DataFram...
we iterate the string list with another extra variable, IDX (we can keep the name of this variable anything). This variable will print the index value of that particular element. But caution, the first variable will print the index value of the element, and the second...
That’s the case with the .items() method, which defines a quick way to iterate over the items or key-value pairs of a dictionary.Looping Over Dictionary Items: The .items() MethodWhen you’re working with dictionaries, iterating over both the keys and values at the same time may be ...
6. Iterate Indexes & Values of 2- Dimensional Array using For Loop Let’s also see how to iterate over both indexes and values of a given 2-D array using Pythonforloop along with thenp.ndenumerate()function. For example, # Iterate 2-D array and get indexes & valuesforindex,valueinnp...
while index < len(numbers): print(numbers[index]) index += 1 输出: 1 2 3 4 5 看来这种方法对列表和其他序列对象非常有效。那么非序列对象呢?他们不支持索引编制,因此这种方法对他们不起作用。 index = 0 numbers = {1, 2, 3, 4, 5} ...
qkey=q[0]forkey,valueiniterate(data):iflen(q)==1:ifkey==qkey:ret.append(value)elifis_iterable(value):ret.extend(do_query(value,q))else:ifnotis_iterable(value):continueifkey==qkey:ret.extend(do_query(value,q[1:]))else:ret.extend(do_query(value,q))returnret ...
Iterate over DataFrame rows as namedtuples, with index value as first element of the tuple. DataFrame.lookup(row_labels, col_labels) Label-based “fancy indexing” function for DataFrame. DataFrame.pop(item) 返回删除的项目 DataFrame.tail([n]) ...
Awesome Python 这个项目收集了Python生态中各领域核心第三方库，内容包括：Web 框架、网络爬虫、网络内容...