Use the len() Function to Check if Set Is Empty in Python One effective approach to determine whether a set is empty is by utilizing the len() function, which returns the number of elements in a set. Basic Syntax: len(my_set) Parameter: iterable(my_set): The iterable (e.g., set...
Python has a set of built-in library objects and functions to help us with this task. In this tutorial, we'll learn how to check if a file or directory is empty in Python. Distinguish Between a File and a Directory When we'd like to check if a path is empty or not, we'll want...
Set is empty 1. 示例2:判断Set是否为空 my_set={1,2,3}# 创建一个非空的Setiflen(my_set)==0:print("Set is empty")else:print("Set is not empty") 1. 2. 3. 4. 5. 输出结果: Set is not empty 1. 示例3:判断Set是否为空 my_set={"apple","banana","cherry"}# 创建一个非空的...
This also allows you to set other values as well, rather than relying on 0 being converted as False. All other positive values are converted to True. Comparison With Empty List This method is also very simple and works well for beginners as it involves comparing with an empty list: if py...
可以使用大括号 { } 或者 set() 函数创建集合, 创建格式: parame = {value01,value02,...} 或者 set(value) 1. 2. 3. ==注意:创建一个空集合必须用 set() 而不是 { },因为 { } 是用来创建一个空字典。== # 创建空集合 empty_set = set() ...
1. Quick Examples of Checking if String is Empty If you are in a hurry, below are some quick examples of how to check whether the given string is empty or not in Python. # Quick Examples # Using not to check if string is empty ...
「练习 2.3」调用自定义函数 is_empty,它接受一个参数并检查它是否为空 代码语言:javascript 复制 defis_empty(obj):# 因为题目中未指明具体类型,所以仅举例几个类型做为判断,实际的应用一般都会预期的类型iftype(obj)is str:returnobj==''eliftype(obj)==list:returnlen(obj)==0eliftype(...
用enumerate()代替range(len()),你写的代码会稍微干净一点。如果只需要条目而不需要索引,仍然可以用 Python 的方式直接遍历列表: 代码语言:javascript 复制 >>># Pythonic Example>>>animals=['cat','dog','moose']>>>foranimalinanimals:...print(animal)...cat ...
# <project_root>/shared_code/__init__.py # Empty __init__.py file marks shared_code folder as a Python package Python Copy # <project_root>/shared_code/my_second_helper_function.py def double(value: int) -> int: return value * 2 You can start writing test cases for your HT...
del_recycle_bin() devices_res_space = get_residual_space(all_devices_paths) ret = check_devices_space(devices_res_space, need_space) if ret == OK: print_ztp_log("Empty recycle bin, the space enough and continue ztp...", LOG_INFO_TYPE) return OK files_removes_device_images, devices...