You can simply check if the List is empty with: ifnotmy_list:print("List is empty") This is using theTruth Value Testingin Python, also known as implicit booleaness or truthy/falsy value testing. Among other rules it defines that empty sequences and collections like'', (), [], {},...
I will use these in the example below to check if the string is empty or not.# Consider the empty string without spaces first = "" if(len(first) == 0): print("Empty string") else: print("Not empty string") # Consider the empty string with spaces second = " " if(len(second) ...
First, we will define a list named whitespaces to store the whitespace characters. Then, we will define a variable isWhiteSpace and initialize it to True. Now, we will check if the input string is an empty string using the equality operator. If the input string is an empty string, we...
Check Empty Text File in Python If you are doing batch processing or processing that part of a bigger process, you will not be putting any output to a screen. You would have different alerts to let you know what is going on so you can interrupt and fix things. ...
Write a Python program to check if a nested list is a subset of another nested list. Visual Presentation: Sample Solution: Python Code: # Define a function 'checkSubset' that checks if all elements of 'input_list2' are contained in 'input_list1'defcheckSubset(input_list1,input_list2):...
``` # Python script to check the status of a website import requests def check_website_status(url): response = requests.get(url) if response.status_code == 200: # Your code here to handle a successful response else: # Your code here to handle an unsuccessful response ``` 说明: 此...
第Python3.x基础实战检查磁盘可用空间目录引言使用psutil模块实现获取磁盘使用情况获取磁盘挂载点检查磁盘可用空间使用du命令实现使用du命令检查磁盘空间检查多个目录的磁盘空间检查磁盘空间使用率发送邮件结论 引言 在Linux服务器上,磁盘空间的使用情况是一个非常重要的指标。如果服务器上的磁盘空间不足,可能会导致服务器崩溃...
sys.path 即 sys.__dict__['path'] 是一个 PyListObject 对象,包含了一组PyStringObject 对象,每一个对象是一个module 的搜索路径。 第三方库路径的添加是 lib/site.py 完成的,在site.py 中完成两个动作: 1. 将 site-packages 路径加入到 sys.path 中。
importnumpyasnpdeftest(a):a[0]=np.nanm=[1,2,3]test(m)print(m) output: [nan, 2, 3] Note python has this really weird error if you define local variable in a function same name as the global variable, program will promptUnboundLocalError. ...
installalso creates${prefix}/bin/python3which refers to${prefix}/bin/python3.X. If you intend to install multiple versions using the same prefix you must decide which version (if any) is your "primary" version. Install that version usingmake install. Install all other versions usingmake ...