pip list --outdated pip install -U xxxx
import subprocess
command = "pip list --outdated"
outdatelist = subprocess.Popen (command, stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell = True).stdout.readlines()
updatelist = [x.split("(")[0] for x in outdatelist ]
if updatelist :
print u"您需要更新以下几个模块:"
print updatelist
for x in updatelist:
tempcmd = "pip install -U " + x
print subprocess.Popen (tempcmd, stdout=subprocess.PIPE,stderr=subprocess.PIPE, shell = True).stdout.readlines()
print u"所有模块都已更新完毕!!"
else :
print u"没有模块需要更新!!"
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