Error while initialize Trac environment

[sdecleire@…]

I get the error below when I init a new trac environment with the trac-admin initenv command :

Creating and Initializing Project
Failed to create environment. need more than 1 value to unpack
Traceback (most recent call last):
  File "/usr/local/lib/python2.4/site-packages/trac/scripts/admin.py", line 139, in env_create
    self.__env = Environment(self.envname, create=True, db_str=db_str)
  File "/usr/local/lib/python2.4/site-packages/trac/env.py", line 79, in __init__
    self.create(db_str)
  File "/usr/local/lib/python2.4/site-packages/trac/env.py", line 197, in create
    db.init_db(self.path, db_str)
  File "/usr/local/lib/python2.4/site-packages/trac/db.py", line 441, in init_db
    cls, args = _get_cnx_class(env_path, db_str)
  File "/usr/local/lib/python2.4/site-packages/trac/db.py", line 449, in _get_cnx_class
    scheme, args = _parse_db_str(db_str)
  File "/usr/local/lib/python2.4/site-packages/trac/db.py", line 462, in _parse_db_str
    scheme, rest = db_str.split(':', 1)
ValueError: need more than 1 value to unpack
Failed to initialize environment. 1
Traceback (most recent call last):
  File "/usr/local/lib/python2.4/site-packages/trac/scripts/admin.py", line 594, in do_initenv
    self.env_create(db_str)
  File "/usr/local/lib/python2.4/site-packages/trac/scripts/admin.py", line 144, in env_create
    sys.exit(1)
SystemExit: 1

[sdecleire@…]

Oups … I just forgotten the database type in the connexion string …

[anonymous]

have you got it work!!! could anyone provide solution for this

[anonymous]

same error here:

Creating and Initializing Project
Failed to create environment. need more than 1 value to unpack
Traceback (most recent call last):
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\scripts\a
dmin.py", line 613, in do_initenv
    options=options)
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\env.py",
line 124, in __init__
    self.create(options)
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\env.py",
line 229, in create
    DatabaseManager(self).init_db()
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\db\api.py
", line 68, in init_db
    connector, args = self._get_connector()
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\db\api.py
", line 84, in _get_connector
    scheme, args = _parse_db_str(self.connection_uri)
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\db\api.py
", line 110, in _parse_db_str
    scheme, rest = db_str.split(':', 1)
ValueError: need more than 1 value to unpack
Failed to initialize environment. 1
Traceback (most recent call last):
  File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\scripts\a
dmin.py", line 617, in do_initenv
    sys.exit(1)
SystemExit: 1

trying now for 3h - i'll give up :(

[osimons]

Replying to anonymous:

> same error here:
>     scheme, args = _parse_db_str(self.connection_uri)
>   File "c:\xampp\python24\lib\site-packages\trac-0.10.3-py2.4.egg\trac\db\api.py
> ", line 110, in _parse_db_str
>     scheme, rest = db_str.split(':', 1)
> ValueError: need more than 1 value to unpack

Like the previous solution, it does look like the database string you enter during initenv is incorrect - it should be two parts, one indicating backend type, the other connection data. If you use sqlite (default) you just hit 'return' and accept default string (sqlite:db/trac.db) - if you use other backend look to DatabaseBackend to find examples of connection strings.

[sid]

Can you provide the database string you were using? Please let us know if this fixes your problem.

[Christian Boos]

No feedback given, closing.

[anonymous]

I had the same problem. As explained in a comment before it was for a incorrect db string.

I was using : db/trac.db and get the error.

Used this solved the problem: ​sqlite:db/mtbsnp.db

[anonymous]

getting this error:-

Creating and Initializing Project
Failed to create environment. need more than 1 value to unpack
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/admin/console.py", line 543, in do_initenv
    options=options)
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/env.py", line 188, in __init__
    self.create(options)
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/env.py", line 311, in create
    DatabaseManager(self).init_db()
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/db/api.py", line 69, in init_db
    connector, args = self._get_connector()
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/db/api.py", line 85, in _get_connector
    scheme, args = _parse_db_str(self.connection_uri)
  File "/usr/lib/python2.5/site-packages/Trac-0.11-py2.5.egg/trac/db/api.py", line 111, in _parse_db_str
    scheme, rest = db_str.split(':', 1)
ValueError: need more than 1 value to unpack

Using trac.db so pls help me……

[osimons]

Replying to anonymous:

Using trac.db so pls help me……

You should be using sqlite:db/trac.db (or just 'Return' to accept the identical default value). Read comments above.