AnsibleError: Decryption failed

[mli312]

When I run
data = vault.load(open(test).read()) where test = "/path/to/vault.yml"
I get this

---------------------------------------------------------------------------
AnsibleError                              Traceback (most recent call last)
<ipython-input-104-4b5e48176f32> in <module>()
      2 password = get_ansible_password()
      3 vault = ansible_vault.Vault(password)
----> 4 data = vault.load(open(test).read())

~/.pyenv/versions/3.5.1/lib/python3.5/site-packages/ansible_vault/api.py in load(self, stream)
     48     def load_raw(self, stream):
     49         """Read vault stream and return raw data."""
---> 50         return self.vault.decrypt(stream)
     51 
     52     def dump_raw(self, text, stream=None):

~/.pyenv/versions/3.5.1/lib/python3.5/site-packages/ansible/parsing/vault/__init__.py in decrypt(self, vaulttext, filename)
    249     try:
    250         return unhexlify(b_data)
--> 251     except (BinasciiError, TypeError) as exc:
    252         raise AnsibleVaultFormatError('Vault format unhexlify error: %s' % exc)
    253 

AnsibleError: Decryption failed

I tested with variable test in Unicode string and byte string format. They both returned the same error.

[bradwood]

I have the same problem :(
could it be a trailing \n in the password file?

[ronansalmon]

Ran into this as well, and yes, the trailing \n is the issue.