Move __version__ from osc.core to osc

Fixes issues with circular module deps during tests
that caused that osc.core wasn't available

osc/__init__.py

@@ -1,3 +1,19 @@
-__all__ = ['babysitter', 'core', 'commandline', 'oscerr', 'build', 'fetch', 'meter', 'grabber']
+__all__ = [
+    'babysitter',
+    'build',
+    'connection',
+    'commandline',
+    'core',
+    'fetch',
+    'grabber',
+    'meter',
+    'oscerr',
+    'oscssl',
+]
+
+
+from .util import git_version
+__version__ = git_version.get_version('1.0.0~b1')
+
 
 # vim: sw=4 et

osc/connection.py

@@ -16,6 +16,7 @@ import urllib3.poolmanager
 import urllib3.response
 import urllib3.util
 
+from . import __version__
 from . import conf
 from . import oscerr
 from . import oscssl
@@ -98,7 +99,7 @@ def get_proxy_manager(env):
 
     proxy_headers = urllib3.make_headers(
         proxy_basic_auth=proxy_purl.auth,
-        user_agent=f"osc/{core.__version__}",
+        user_agent=f"osc/{__version__}",
     )
 
     manager = urllib3.ProxyManager(proxy_url, proxy_headers=proxy_headers)
@@ -171,7 +172,7 @@ def http_request(method, url, headers=None, data=None, file=None):
     headers = urllib3.response.HTTPHeaderDict(headers or {})
 
     # identify osc
-    headers.update(urllib3.make_headers(user_agent=f"osc/{core.__version__}"))
+    headers.update(urllib3.make_headers(user_agent=f"osc/{__version__}"))
 
     if data and file:
         raise RuntimeError('Specify either `data` or `file`')

osc/core.py

@@ -4,10 +4,6 @@
 # either version 2, or version 3 (at your option).
 
 
-from .util import git_version
-__version__ = git_version.get_version('1.0.0~b1')
-
-
 # __store_version__ is to be incremented when the format of the working copy
 # "store" changes in an incompatible way. Please add any needed migration
 # functionality to check_store_version().
@@ -37,6 +33,7 @@ try:
 except ImportError:
     distro = None
 
+from . import __version__
 from . import conf
 from . import oscerr
 from .connection import http_request, http_GET, http_POST, http_PUT, http_DELETE