A variety of standard error handlers are available (listed under Error Handlers), though any error handling name that has been registered with codecs.register_error() is also valid. The standard names include: 'strict' to raise a ValueError exception if there is an encoding error. The default...
Handling run-time error: int division or modulo by zero try-finally 语句 try-finally 语句无论是否发生异常都将执行最后的代码。 以下实例中 finally 语句无论异常是否发生都会执行: 实例 try: runoob() except AssertionError as error: print(error) else: try: with open('file.log') as file: read_...
errorsis an optional string that specifies how encoding and decoding errors are to be handled–this cannot be used in binary mode. A variety of standard error handlers are available (listed underError Handlers), though any error handling name that has been registered withcodecs.register_error()i...
print('Handling run-time error:',err) Handling run-timeerror:intdivisionormodulo by zero try-finally 语句 try-finally 语句无论是否发生异常都将执行最后的代码。 以下实例中 finally 语句无论异常是否发生都会执行: 实例 try: runoob() exceptAssertionErroraserror: print(error) else: try: withopen('fi...
# error handling finally: # optional, clean up try: 这里开始进入抓去异常的范围。 # do something: 运行你写的代码。 except...: 到这里异常抓取范围结束,在这个范围内如果发生指定的异常事件,就会被“抓住”处理。 Exception as error: 这里指定的异常事件是 Exception 类,抓住了之后给其定义一个变量叫 er...
print("Error: Permission denied to open the file.") # Usage # Prompt the user to input a file name and store it in the 'file_name' variable. file_name = input("Input a file name: ") # Call the open_file function with the provided file name, attempting to open the file in write...
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1319, in do_open raise URLError(err) urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056)>toto...
except(RuntimeError,TypeError,NameError):pass 最后一个except子句可以忽略异常的名称,它将被当作通配符使用。你可以使用这种方法打印一个错误信息,然后再次把异常抛出。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importsystry:f=open('myfile.txt')s=f.readline()i=int(s.strip())except OSErrorase...
>>> except (RuntimeError, TypeError, NameError): pass 1. 2. 最后一个 except 子句可以忽略异常的名称,它将被当作通配符使用。你可以使用这种方法打印一个错误信息,然后再次把异常抛出。 import sys try: f = open('myfile.txt') s = f.readline() ...
importsocket#Imported sockets moduleimportsystry:#Create an AF_INET (IPv4), STREAM socket (TCP)tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)exceptsocket.error, e:print'Error occurred while creating socket. Error code: '+str(e[0]) +' , Error message : '+ e[1] ...