Several examples of Python generating random passwords

Before writing a shell to generate random passwords, in order to follow more automation, part of the work has been transferred to the automation of Python processing, so many of the original shell tools have to be transformed
The following is written by Python to generate random passwords, the use of knowledge points are: Random used to generate random numbers, Sys used to get the parameters of the command line, the default without parameters, generate 16-bit password, but also need to improve the place are:
1, the level of generation of passwords, such as only to generate numbers or lowercase letters, etc.

The code is as follows

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[Root@liufofu python]# Cat ff_mkpasswd.py #!/usr/bin/env python #coding =utf-8 ########################################## ######### descprition ################## # 1.make Random Password # 2. ######################################## Import Sys Import Random Def print_usage (): Help_info= ' " NAME: ff_mkpasswd.py SYNTAX: ff_mkpasswd.py arg1 FUNCTION: Make random password ''' def mk_random_passwd (Arylist,rlen): Randpasswd= "" I=0 While I<rlen: Rindex=int (Random.random () *10000)%len (arylist) Randpasswd=randpasswd+str (Arylist[rindex]) I=i+1 Return RANDPASSWD If __name__== ' __main__ ': Arylist=[' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' g ', ' h ', ' k ', ' l ', ' m ', ' n ', ' O ' , ' P ', ' Q ', ' R ', ' s ', ' t ', ' u ', ' V ', ' w ', ' x ', ' y ', ' z ' , 0,1,2,3,4,5,6,7,8,9, '! ', ' @ ', ' # ', ' $ ', '% ', ' ^ ', ' & ', ' * ', ' (', ') ', ' _ ', ' = ' , ' + ', ' [', '] ', ' {', '} ', '. ', ' < ', ' > ', '? ' ' A ', ' B ', ' C ', ' D ', ' E ', ', F ', ' G ', ' H ', ' I ', ' J ', ' K ', ' L ', ' M ', ' N ', ' O ', ' P ', ' R ', ' S ', ' T ', ' U ', ' V ', ' W ', ' X ', ' Y ', ' Z ' Rlen=0 If Len (SYS.ARGV) <2: Rlen=16 Else If Sys.argv[1].isdigit (): Rlen=int (Sys.argv[1]) Else Rlen=16 Print mk_random_passwd (Arylist,rlen) The result of the call is as follows: [Root@liufofu python]#./ff_mkpasswd.py $[2zg%%wcg4&t.sk [Root@liufofu python]#./ff_mkpasswd.py 5 vzm#$ [Root@liufofu python]#./ff_mkpasswd.py 10 43nmlo%noz [Root@liufofu python]#./ff_mkpasswd.py 1 ^ [Root@liufofu python]#./ff_mkpasswd.py 2 2N

Example 2

The code is as follows

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#-*-Coding:utf-8-*- ''' Briefly generates random passwords, including uppercase and lowercase letters, numbers, and can specify password lengths ''' #生成随机密码 From random import choice Import string #python3中为string. Ascii_letters, while Python2 can use String.letters and string.ascii_letters def genpassword (length=8,chars=string.ascii_letters+string.digits): Return '. Join ([Choice (chars) to I in range (length)]) If __name__== "__main__": #生成10个随机密码 For I in range (10): #密码的长度为8 Print (Genpassword (8))

Example 3

code is as follows

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#!/usr/bin /env python #-*-coding:utf-8-*- #导入random和string模块 Import Random, String def genpassword (length): & nbsp;   #随机出数字的个数     numofnum = Random.randint (1,length-1)     Numofletter = Length-numofnum     #选中numOfNum个数字     slcnum = [Random.choice ( String.digits) for I in Range (numofnum)]     #选中numOfLetter个字母     slcletter = [ Random.choice (string.ascii_letters) for I in Range (Numofletter)]     #打乱这个组合      Slcchar = slcnum + slcletter     random.shuffle (slcchar)     #生成密码 & nbsp;   genPwd = '. Join ([I for I on Slcchar])     return genPwd If __name__ = ' __main__ ':     print Genpassword (6)