ENH: avoid unnecessary ga mgmt calls if given profile_id upfront

ci/print_versions.py

@@ -129,4 +129,22 @@
 except:
     print("html5lib: Not installed")
 
+try:
+    import apiclient
+    print("apiclient: %s" % apiclient.__version__)
+except:
+    print("apiclient: Not installed")
+
+try:
+    import oauth2client
+    print("oauth2client: %s" % oauth2client.__version__)
+except:
+    print("oauth2client: Not installed")
+
+try:
+    import httplib2
+    print("httplib2: %s" % httplib2.__version__)
+except:
+    print("httplib2: Not installed")
+
 print("\n")

ci/requirements-2.6.txt

@@ -4,3 +4,5 @@ python-dateutil==1.5
 pytz==2013b
 http://www.crummy.com/software/BeautifulSoup/bs4/download/4.2/beautifulsoup4-4.2.0.tar.gz
 html5lib==1.0b2
+google-api-python-client==1.2
+httplib2==0.8

ci/requirements-2.7.txt

@@ -16,3 +16,6 @@ scikits.timeseries==0.91.3
 MySQL-python==1.2.4
 scipy==0.10.0
 beautifulsoup4==4.2.1
+google-api-python-client==1.2
+httplib2==0.8
+python-gflags==2.0

ci/requirements-2.7_LOCALE.txt

@@ -14,3 +14,4 @@ html5lib==1.0b2
 lxml==3.2.1
 scipy==0.10.0
 beautifulsoup4==4.2.1
+google-api-python-client==1.2

doc/source/install.rst

@@ -148,6 +148,10 @@ Optional Dependencies
          to get the necessary dependencies for installation of `lxml`_. This
          will prevent further headaches down the line.
 
+  * `google-api-python-client `<https://developers.google.com/
+      api-client-library/python/start/installation>`__
+      * Needed for :mod:`pandas.io.ga`
+
 
 .. _html5lib: https://github.com/html5lib/html5lib-python
 .. _BeautifulSoup4: http://www.crummy.com/software/BeautifulSoup

pandas/io/ga.py

@@ -15,8 +15,18 @@
 import pandas.io.auth as auth
 from pandas.util.decorators import Appender, Substitution
 
-from apiclient.errors import HttpError
-from oauth2client.client import AccessTokenRefreshError
+try:
+    from apiclient.errors import HttpError
+    _APICLIENT_INSTALLED = True
+except:
+    _APICLIENT_INSTALLED = False
+
+try:
+    from oauth2client.client import AccessTokenRefreshError
+    _OAUTH2_INSTALLED = True
+except:
+    _OAUTH2_INSTALLED = False
+
 from pandas.compat import zip, u
 
 TYPE_MAP = {u('INTEGER'): int, u('FLOAT'): float, u('TIME'): int}
@@ -97,6 +107,12 @@ def reset_token_store():
 @Substitution(extras=_AUTH_PARAMS)
 @Appender(_GA_READER_DOC)
 def read_ga(metrics, dimensions, start_date, **kwargs):
+
+    if not _OAUTH2_INSTALLED:
+        raise ImportError('Could not import OAuth2.0 Client.')
+    elif not _APICLIENT_INSTALLED:
+        raise ImportError('Could not import Google Python API.')
+
     lst = ['secrets', 'scope', 'token_file_name', 'redirect']
     reader_kwds = dict((p, kwargs.pop(p)) for p in lst if p in kwargs)
     reader = GAnalytics(**reader_kwds)
@@ -254,13 +270,15 @@ def get_data(self, metrics, start_date, end_date=None,
             raise ValueError('Google API returns maximum of 10,000 rows, '
                              'please set chunksize')
 
-        account = self.get_account(account_name, account_id)
-        web_property = self.get_web_property(account.get('id'), property_name,
-                                             property_id)
-        profile = self.get_profile(account.get('id'), web_property.get('id'),
-                                   profile_name, profile_id)
+        if not profile_id:
+            account = self.get_account(account_name, account_id)
+            web_property = self.get_web_property(account.get('id'),
+                                                 property_name, property_id)
+            profile = self.get_profile(account.get('id'),
+                                       web_property.get('id'), profile_name,
+                                       profile_id)
 
-        profile_id = profile.get('id')
+            profile_id = profile.get('id')
 
         if index_col is None and dimensions is not None:
             if isinstance(dimensions, compat.string_types):

pandas/io/tests/test_ga.py

@@ -13,8 +13,8 @@
     from pandas.io.ga import GAnalytics, read_ga
     from pandas.io.auth import AuthenticationConfigError, reset_token_store
     from pandas.io import auth
-except ImportError:
-    raise nose.SkipTest
+except (Exception) as detail:
+    raise nose.SkipTest(detail)
 
 class TestGoogle(unittest.TestCase):