【0基础小白python入门】文件处理(file handling)发布于 2021-10-17 07:39 · 972 次播放 赞同42 条评论 分享收藏喜欢 举报 Python文件管理文件Python 入门Python 开发Python教程 写下你的评论... 2 条评论 默认 最新 小蜻蜓 讲的很细致,很清楚,很容易理解。 2021-10-17 ...
1#!/usr/bin/python2## A file handling script, including functions that could search file by key3## and rename file by appending key value to the file names.45importos6importshutil7importcopy89defget_INV_list(key_file):10"""read key_file and get key values into list"""11INV_file =...
Python File HandlingIn our File Handling section you will learn how to open, read, write, and delete files.Python File HandlingPython Database HandlingIn our database section you will learn how to access and work with MySQL and MongoDB databases:...
print('Handling other exceptions...') 上面这段代码,当输入a(非数字)时,将抛出ValueError异常;当输入0时,将抛出ZeroDivisionError异常;当抛出其他类型的异常时,将执行except:后的处理语句。 如果在 try 语句执行时,出现了一个异常,该语句的剩下部分将被跳过。并且如果该异常的类型匹配到了 except 后面的异常名,...
file = open("example.txt", "w") file.write("Hello, World!") lines = ["Line 1", "Line 2", "Line 3"] file.writelines(lines) file.close() How to Close a File Theclose()method is essential for proper file handling. It closes the file and releases any system resources associated ...
ZipImportError: can't decompress data; zlib not available During handling of the above exception, another exception occurred: Traceback (most recent call last): File "<string>", line 6, in <module> File "/root/Python-3.9.0/Lib/runpy.py", line 206, in run_module mod_name, mod_spec,...
File " Exception.py", line 7, in <module> if __name__ == '__main__': main() 对于异常的处理,在python中,我们可以使用try语句来进行捕获 def main(): try: x = int('str') print(x) except ValueError: print('Caught a ValueError Exception') if __name__ == '__main__': main()...
days_file=open(path,'r') Copy Now that you have opened the file, the next step will walk you through reading its contents. Step 3 — Reading a File Since our file has been opened, we can now manipulate it (i.e. read from it) through the variable it was assigned to. Python provid...
requests.packages.urllib3.exceptions.SSLError: [SSL: SSLV3_ALERT_HANDSHAKE_FAILU RE] sslv3 alert handshake failure (_ssl.c:1108) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Python\zhicheng\zc_get.py", line 123, in <modul...
(6, 9) >>> a 6 >>> a, b = 6, 9 # Typical unpacking >>> a, b (6, 9) >>> (a, b = 16, 19) # Oops File "<stdin>", line 1 (a, b = 16, 19) ^ SyntaxError: invalid syntax >>> (a, b := 16, 19) # This prints out a weird 3-tuple (6, 16, 19) >>> ...