有没有办法在Python中生成随机字母(如random.randint但字母)? random.randint的范围功能会很好但是有一个只输出随机字母的生成器会比没有好。
简单:
>>> import string
>>> string.ascii_letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
>>> import random
>>> random.choice(string.ascii_letters)
'j'
string.ascii_letters
根据当前语言环境返回包含小写字母和大写字母的字符串。
random.choice
从序列中返回单个随机元素。
import random
def Random_Alpha():
l = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
return l[random.randint(0,25)]
print(Random_Alpha())
import string
import random
KEY_LEN = 20
def base_str():
return (string.letters+string.digits)
def key_gen():
keylist = [random.choice(base_str()) for i in range(KEY_LEN)]
return ("".join(keylist))
你可以得到这样的随机字符串:
g9CtUljUWD9wtk1z07iF
ndPbI1DDn6UvHSQoDMtd
klMFY3pTYNVWsNJ6cs34
Qgr7OEalfhXllcFDGh2l
def create_key(key_len):
key = ''
valid_characters_list = string.letters + string.digits
for i in range(key_len):
character = choice(valid_characters_list)
key = key + character
return key
def create_key_list(key_num):
keys = []
for i in range(key_num):
key = create_key(key_len)
if key not in keys:
keys.append(key)
return keys
所有以前的答案都是正确的,如果你正在寻找各种类型的随机字符(即字母数字和特殊字符),那么这里是我创建的脚本,用于演示各种类型的创建随机函数,它有三个函数,一个用于数字,alpha-字符和特殊字符。该脚本只是生成密码,只是演示生成随机字符的各种方法的示例。
import string
import random
import sys
#make sure it's 3.7 or above
print(sys.version)
def create_str(str_length):
return random.sample(string.ascii_letters, str_length)
def create_num(num_length):
digits = []
for i in range(num_length):
digits.append(str(random.randint(1, 100)))
return digits
def create_special_chars(special_length):
stringSpecial = []
for i in range(special_length):
stringSpecial.append(random.choice('!$%&()*+,-.:;<=>?@[]^_`{|}~'))
return stringSpecial
print("how many characters would you like to use ? (DO NOT USE LESS THAN 8)")
str_cnt = input()
print("how many digits would you like to use ? (DO NOT USE LESS THAN 2)")
num_cnt = input()
print("how many special characters would you like to use ? (DO NOT USE LESS THAN 1)")
s_chars_cnt = input()
password_values = create_str(int(str_cnt)) +create_num(int(num_cnt)) + create_special_chars(int(s_chars_cnt))
#shuffle/mix the values
random.shuffle(password_values)
print("generated password is: ")
print(''.join(password_values))
结果:
您可以使用
map(lambda a : chr(a), np.random.randint(low=65, high=90, size=4))
好吧,这是我的答案!它运作良好。只需将所需的随机字母数放入“数字”......(Python 3)
import random
def key_gen():
keylist = random.choice('abcdefghijklmnopqrstuvwxyz')
return keylist
number = 0
list_item = ''
while number < 20:
number = number + 1
list_item = list_item + key_gen()
print(list_item)
import string
import random
def random_char(y):
return ''.join(random.choice(string.ascii_letters+string.digits+li) for x in range(y))
no=int(input("Enter the number of character for your password= "))
li = random.choice('!@#$%^*&( )_+}{')
print(random_char(no)+li)
我过于复杂的代码:
import random
letter = (random.randint(1,26))
if letter == 1:
print ('a')
elif letter == 2:
print ('b')
elif letter == 3:
print ('c')
elif letter == 4:
print ('d')
elif letter == 5:
print ('e')
elif letter == 6:
print ('f')
elif letter == 7:
print ('g')
elif letter == 8:
print ('h')
elif letter == 9:
print ('i')
elif letter == 10:
print ('j')
elif letter == 11:
print ('k')
elif letter == 12:
print ('l')
elif letter == 13:
print ('m')
elif letter == 14:
print ('n')
elif letter == 15:
print ('o')
elif letter == 16:
print ('p')
elif letter == 17:
print ('q')
elif letter == 18:
print ('r')
elif letter == 19:
print ('s')
elif letter == 20:
print ('t')
elif letter == 21:
print ('u')
elif letter == 22:
print ('v')
elif letter == 23:
print ('w')
elif letter == 24:
print ('x')
elif letter == 25:
print ('y')
elif letter == 26:
print ('z')
它基本上从26中生成一个随机数,然后转换成相应的字母。这可能会有所改善,但我只是一个初学者,我为这段代码感到自豪。
也许这可以帮助你:
import random
for a in range(64,90):
h = random.randint(64, a)
e += chr(h)
print e
在键盘上放一个蟒蛇让他滚过字母,直到你找到你喜欢的随机组合开玩笑!
import string #This was a design above but failed to print. I remodled it.
import random
irandom = random.choice(string.ascii_letters)
print irandom
>>> import random
>>> import string
>>> random.choice(string.ascii_letters)
'g'
>>>def random_char(y):
return ''.join(random.choice(string.ascii_letters) for x in range(y))
>>>print (random_char(5))
>>>fxkea
生成y个随机字符
>>> import random
>>> import string
>>> random.choice(string.ascii_lowercase)
'b'
另一种方式,为了完整性:
>>> chr(random.randrange(97, 97 + 26))
使用ascii
'a'为97的事实,字母表中有26个字母。
在确定random.randrange()
函数调用的上限和下限时,请记住random.randrange()
在其上限是唯一的,这意味着它只会生成比提供的值少1个单位的整数。
def randchar(a, b):
return chr(random.randint(ord(a), ord(b)))
import random
def guess_letter():
return random.choice('abcdefghijklmnopqrstuvwxyz')
你可以列一个清单:
import random
list1=['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
b=random.randint(0,7)
print(list1[b])
您可以使用它来获得一个或多个随机字母
import random
import string
random.seed(10)
letters = string.ascii_lowercase
rand_letters = random.choices(letters,k=5) # where k is the number of required rand_letters
print(rand_letters)
['o', 'l', 'p', 'f', 'v']