Python中常用的十个函数介绍

#加载包
import shutil
#查看包中的所有方法
print(dir(shutil))
[ 'chown', 'collections', 'copy', 'copy2', 'copyfile', 'copyfileobj', 'copymode', 'copystat', 'copytree', 'disk_usage', 'errno', 'fnmatch', 'get_arcHive_fORMats', 'get_terminal_size', 'get_unpack_formats', 'getgrnam', 'getpwnam', 'ignore_patterns', 'make_archive', 'move', 'nt', 'os', 'reGISter_archive_format', 'register_unpack_format', 'rmtree', 'stat', 'sys', 'unpack_archive', 'unregister_archive_format', 'unregister_unpack_format', 'which']

shutil.copy('test.csv','C:/Users/zhengxiang.wzx/Desktop/')
'C:/Users/zhengxiang.wzx/Desktop/test.csv'

shutil.copy2('test.csv','C:/Users/zhengxiang.wzx/Desktop/')
'C:/Users/zhengxiang.wzx/Desktop/test.csv'

import shutil
f1 = open('file.txt','r')
f2 = open('file_copy.txt','w+')
shutil.copyfileobj(f1,f2,length=16*1024)

import shutil
f1 = open('file.txt','r')
f2 = open('file_copy.txt','w+')
shutil.copyfileobj(f1,f2,length=16*1024)

import shutil,os
path1 = os.path.join(os.getcwd(),"kaggle")
path1
'C:\\Users\\wuzhengxiang\\Desktop\\Python知识点总结\\kaggle'
#bbb与ccc文件夹都可以不存在,会自动创建
path2 = os.path.join(os.getcwd(),"bbb","ccc")
path2
'C:\\Users\\wuzhengxiang\\Desktop\\Python知识点总结\\bbb\\ccc'
# 将"abc.txt","bcd.txt"忽略，不复制
shutil.copytree(path1,path2,ignore=shutil.ignore_patterns("abc.txt","bcd.txt"))

shutil.copymode("file_0.csv","file_1.csv")

os.chdir('C:/Users/wuzhengxiang/Desktop/Python知识点总结')
os.getcwd()
shutil.move('file_1.csv', 'C:/Users/wuzhengxiang/Desktop/股票数据分析')
'C:/Users/wuzhengxiang/Desktop/股票数据分析\\file_1.csv'

shutil.disk_usage('D:')
usage(total=151199412224, used=41293144064, free=109906268160)

total，总存储：151199412224/1024/1024/1024=140GB
used，已使用：41293144064/1024/1024/1024=38GB
free，剩余容量：109906268160/1024/1024/1024=102GB

#把当前目录下的file_1.csv打包压缩
shutil.make_archive('file_1.csv','gztar',root_dir='C:/Users/wuzhengxiang/Desktop/股票数据分析')
'C:\\Users\\wuzhengxiang\\Desktop\\股票数据分析\\file_1.csv.tar.gz'

import shutil,os
zip_path = os.path.join(os.getcwd(),"file_1.csv.tar")
extract_dir = os.path.join(os.getcwd(),"aaa")
shutil.unpack_archive(zip_path, extract_dir)

#删除文件夹shutil.rmtree('C:/Users/wuzhengxiang/Desktop/Python知识点总结/test2')