Another common method for reading a file line-by-line into a list in Python is to use a for loop. We initialize an empty list, open the file in read mode using thewithstatement and iterate over each line in the file using a for loop. Each line is appended to the list usingappend()...
First, open the file and read the file using readlines(). If you want to remove the new lines ('\n'), you can use strip(). Example 2: Using for loop and list comprehension with open('data_file.txt') as f: content_list = [line for line in f] print(content_list) # removing ...
Python逐行读取文件内容thefile= open("foo.txt") line = thefile.readline() while line: print line, line = thefile.readline() thefile.close()Windows下文件
The end of the line '\n' is replaced with ' ' and the text is splitted if further ?.' Is seen. The data is now printed as output using the print() function. #program to read a text file into a list #opening the file in read mode file = open("example.txt", "r") data = ...
for line in fileinput.input('test1.txt',inplace=1,backup='.bak'): #表示把匹配的内容写到文件中,并先备份原文件 line = line.replace('oldtext','newtext') print line 例5、 with open('test1.txt','r+') as f: 相当于‘例3’
""" readinto() -> Undocumented. Don't use this; it may go away. """ pass def readline(self, size=None): # real signature unknown; restored from __doc__ 仅读取一行数据 """readline([size]) -> next line from the file, as a string. ...
next() ValueError: I/O operation on closed file 代码语言:javascript 代码运行次数:0 运行 AI代码解释 In [50]: f1=open('/etc/passwd','r') In [51]: f1. f1.close f1.isatty f1.readinto f1.truncate f1.closed f1.mode f1.readline f1.write f1.encoding f1.name f1.readlines f1....
Read a File Line-by-Line withreadlines() Thereadlines()method readsall the linesand stores them into aList. We can then iterate over that list and usingenumerate(), make an index for each line for our convenience: file =open('Iliad.txt','r') lines = file.readlines()forindex, linein...
f=open('hello',encoding='utf8') print(f.read()) 1. 2. 如果你的文件保存的是gbk编码,在win 下就不用指定encoding了。 另外,如果你的win上不需要指定给操作系统encoding=‘utf8’,那就是你安装时就是默认的utf8编码或者已经通过命令修改成了utf8编码。 注意:open这个函数在py2里和py3中是不同的,py...
>>> # Read and print the entire file line by line >>> line = reader.readline() >>> while line != '': # The EOF char is an empty string >>> print(line, end='') >>> line = reader.readline() Pug Jack Russel Terrier