datafile = open('datafile',"r")
for line in datafile: # 对文本文件,可以直接遍历文件对象获取每行
do_something(line)
# 按行读取
file_object = open('datefile','r')
list_of_all_the_lines = file_object.readlines( )
for line in list_of_all_lines;
# 将文件读入到一个字符串中
f = open('datafile','r')
s = f.read()
>> s
"test line1\n test line2 \n end:"
# 读取二进制文件
with open('/root/client.conf', mode='rb') as file:
fileContent = file.read()
# 取文件名
file.split('.')[0]
# 取文件后缀
file.split('.')[-1]
# 判断文件是否存在
import os
if os.path.exists(filename):
print 'file exist'
else
print 'file not exists'
# 判断是文件
os.path.isfile(filename):
# 判断是文件夹
os.path.isdir(filename) # 需要连接path: os.path.join(dir,filename)
# 判断是否绝对路径:
os.path.isabs(filepath)
# 遍历文件夹
for filename in os.listdir(dir):
# 判断文件夹,需要join path目录
if os.path.isdir(os.path.join(dir,filename)):
# 获取当前系统路径
print os.getcwd()
# 获取文件夹下所有文件
import re
for filename in os.listdir('tmp/'):
# 获取当前文件夹目录
$PYTHON -c 'import os;os.path.dirname(os.path.abspath(__file__))'