This is ver simple python tool to generate strings ex. for passwords. There are three possible options:

1. Build random string based on characters groups

2. Build random string based on regex-like patterns.Supported special characters:

   Character	Description	Example
   {}()|-.	Restricted meta-characters.
   	Backslash escapes a metacharacter.	column 3
   d	Digits shorthand.	exapnded to 0-9
   w	Number shorthand.	expanded to A-Za-z0-9_
   s	Space shorthand.	expanded to (space) only
   []	Nested characters class.	[Abc_]
   	Characters range (between to chars).	[a-z], [A-Za-z0-9]
   {n}	Reapat (random character) n-times.	{5}
   {n,m}	Repeat (random character) k-times, where k is random number form n-m range.	{1,5}
   (a|b)	random element from group.	(user|root)

3. Generate Encryption keys:

   • RSA
   • ECDSA

4. Build random string or set of string based on predefined models. This models are build upon above generators. Models can be build as python class or as a YAML configuration file.
5. Results can be serialized to either json or yaml.
6. Simple comman line interface.

1. Simple Generator:

from simplegenerator import SimpleGenerator
generator = SimpleGenerator(10, with_brackets=True)
result1 = generator.generate()
result2 = generator.generate(15)

1. RegEx-like Generator:

from simplegenerator import ReGenerator
pgenerator = ReGenerator("[a-zA-Z0-9]{5-15}")
result = pgenerator.generate()

1. Model based Generator:

from simplegenerator import (ModelBasedGenerator, RegexField,
                             StringField, RSAKey)

class Model(ModelBasedGenerator):
    user = RegexField('[a-zA-Z]{10}')
    key = RSAKey(password=PGenerator('[a-zA-Z0-9]{15}')
    url = StringField('http://github.com/')

model_generator = Model()
result = model_generator.generate()

1. Model Load from YAML file:

user:
    type: RegexField
    args:
        pattern: '[a-z]{2}'

from simplegenerator import ModelBasedGenerator

generator = ModelBasedGenerator.load('model.yml')
result = generator.generate()

More complex models can be find in examples folder.

This tools provides also command line interface.

$ simplegenerator simple --length 10 --with-lower --with-upper --with-numbers
$ simplegenerator regex --pattern [a-zA-Z0-9]{15}
$ simplegenerator model --file model.yml