Variable referenced before assignment in "realistic_email"

[Havan Agrawal]

https://github.com/tirthajyoti/pydbgen/blob/master/pydbgen/pydbgen.py#L99

import pydbgen
myDB = pydbgen.pydb()
myDB.realistic_email("Peter Parker")

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "...../pydbgen/pydbgen/pydbgen.py", line 99, in realistic_email
    print(path)
UnboundLocalError: local variable 'path' referenced before assignment

[Havan Agrawal]

Additionally, the dir path uses an OS specific separator, which causes it to fail on Mac.

path = dir_path + "\Domains.txt"

[Horaddrim]

Do you think it's cool to use os.path.abspath to? I'm fixing it