passpie init crash if ~/.passpie already exist

[onemoz]

Hello,

I tried on 3 different linux (centos7, arch and ubuntu 16.04), I have the same behavior :

oliviern@oliviern-VirtualBox:~$ passpie init
Passphrase: 
Repeat for confirmation: 
Initialized database in /home/oliviern/.passpie
oliviern@oliviern-VirtualBox:~$ passpie init
Traceback (most recent call last):
  File "/usr/local/bin/passpie", line 9, in <module>
    load_entry_point('passpie==1.0.2', 'console_scripts', 'passpie')()
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/core.py", line 716, in __call__
    return self.main(*args, **kwargs)
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/core.py", line 696, in main
    rv = self.invoke(ctx)
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/core.py", line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args[1:], **kwargs)
  File "/home/oliviern/.local/lib/python2.7/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/passpie/cli.py", line 129, in init
    os.makedirs(db.path)
  File "/usr/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 17] File exists: '/home/oliviern/.passpie'

Thank you for making this nice tool :)