Add version as an importable variable and remove dependency on pkg_resources

RELEASING.md

@@ -31,10 +31,10 @@ Our team will trigger the release pipeline.
 - Commit the changes to the repository in a release branch and open a PR. Do not merge yet.
 
 ### Release
-1. Bump the version in [`setup.py`](setup.py) and push it to your changelog PR. [Example](https://github.com/DataDog/datadogpy/pull/495/files#diff-2eeaed663bd0d25b7e608891384b7298)
+1. Bump the version in [`datadog/version.py`](datadog/version.py) and push it to your changelog PR. [Example](https://github.com/DataDog/datadogpy/pull/495/files#diff-2eeaed663bd0d25b7e608891384b7298)
 1. Merge the PR to master.
 1. Create the release on GitHub. [Example](https://github.com/DataDog/datadogpy/releases/tag/v0.33.0)
 1. Checkout the tag created at the previous step.
 1. Run `ddev release build .` and `ddev release upload --sdist . `.
    - Make sure that both an `sdist` and a [universal wheel](https://packaging.python.org/guides/distributing-packages-using-setuptools/#universal-wheels) have been uploaded to [PyPI](https://pypi.python.org/pypi/datadog/).
-1. Bump the version again in `setup.py` to a dev version (e.g. `0.34.0` -> `0.35.0.dev`), open a PR and merge it to master.
+1. Bump the version again in `datadog/version.py` to a dev version (e.g. `0.34.0` -> `0.35.0.dev`), open a PR and merge it to master.

datadog/__init__.py

@@ -21,11 +21,8 @@
 from datadog.dogstatsd import DogStatsd, statsd  # noqa
 from datadog.threadstats import ThreadStats, datadog_lambda_wrapper, lambda_metric  # noqa
 from datadog.util.compat import iteritems, NullHandler, text
-from datadog.util.config import get_version
 from datadog.util.hostname import get_hostname
-
-
-__version__ = get_version()
+from datadog.version import __version__  # noqa
 
 # Loggers
 logging.getLogger('datadog.api').addHandler(NullHandler())

datadog/dogshell/__init__.py

@@ -10,7 +10,7 @@
 import argparse
 
 # datadog
-from datadog import initialize
+from datadog import initialize, __version__
 from datadog.dogshell.comment import CommentClient
 from datadog.dogshell.common import DogshellConfig
 from datadog.dogshell.dashboard_list import DashboardListClient
@@ -26,7 +26,6 @@
 from datadog.dogshell.tag import TagClient
 from datadog.dogshell.timeboard import TimeboardClient
 from datadog.dogshell.dashboard import DashboardClient
-from datadog.util.config import get_version
 
 
 def main():
@@ -53,7 +52,7 @@ def main():
     parser.add_argument('--timeout', help="time to wait in seconds before timing"
                         " out an API call (default 10)", default=10, type=int)
     parser.add_argument('-v', '--version', help='Dog API version', action='version',
-                        version='%(prog)s {0}'.format(get_version()))
+                        version='%(prog)s {0}'.format(__version__))
 
     config = DogshellConfig()
 

datadog/dogshell/wrap.py

@@ -33,8 +33,7 @@
 import warnings
 
 # datadog
-from datadog import initialize, api
-from datadog.util.config import get_version
+from datadog import initialize, api, __version__
 from datadog.util.compat import is_p3k
 
 
@@ -258,7 +257,7 @@ def parse_options(raw_args=None):
 quotes to prevent python executing as soon as there is a space in your command. \n \nNOTICE: In \
 normal mode, the whole stderr is printed before stdout, in flush_live mode they will be mixed but \
 there is not guarantee that messages sent by the command on both stderr and stdout are printed in \
-the order they were sent.", version="%prog {0}".format(get_version()), option_class=DogwrapOption)
+the order they were sent.", version="%prog {0}".format(__version__), option_class=DogwrapOption)
 
     parser.add_option('-n', '--name', action='store', type='string', help="the name of the event \
 as it should appear on your Datadog stream")

datadog/dogstatsd/base.py

@@ -19,8 +19,8 @@
 from datadog.dogstatsd.context import TimedContextManagerDecorator
 from datadog.dogstatsd.route import get_default_route
 from datadog.util.compat import text
-from datadog.util.config import get_pkg_version
 from datadog.util.format import normalize_tags
+from datadog.version import __version__
 
 # Logging
 log = logging.getLogger('datadog.dogstatsd')
@@ -163,13 +163,9 @@ def __init__(self, host=DEFAULT_HOST, port=DEFAULT_PORT, max_buffer_size=50, nam
         self.default_sample_rate = default_sample_rate
 
         # init telemetry version
-        try:
-            client_version = get_pkg_version()
-        except Exception:
-            client_version = u"unknown"
         self._client_tags = [
                 "client:py",
-                "client_version:{}".format(client_version),
+                "client_version:{}".format(__version__),
                 "client_transport:{}".format(transport),
                 ]
         self._reset_telementry()

datadog/util/compat.py

@@ -74,11 +74,6 @@ class NullHandler(Handler):
         def emit(self, record):
             pass
 
-try:
-    import pkg_resources as pkg
-except ImportError:
-    pkg = None  # type: ignore
-
 
 def _is_py_version_higher_than(major, minor=0):
     """

datadog/util/config.py

@@ -6,7 +6,8 @@
 import sys
 
 # datadog
-from datadog.util.compat import configparser, StringIO, is_p3k, pkg
+from datadog.util.compat import configparser, StringIO, is_p3k
+from datadog.version import __version__
 
 # CONSTANTS
 DATADOG_CONF = "datadog.conf"
@@ -135,26 +136,16 @@ def get_config(cfg_path=None, options=None):
 def get_pkg_version():
     """
     Resolve `datadog` package version.
-    """
-    if not pkg:
-        return u"unknown"
-
-    dist = pkg.get_distribution("datadog")
-    # Normalize case for Windows systems
-    dist_loc = os.path.normcase(dist.location)
-    here = os.path.normcase(__file__)
-    if not here.startswith(dist_loc):
-        # not installed, but there is another version that *is*
-        raise pkg.DistributionNotFound
 
-    return dist.version
+    Deprecated: use `datadog.__version__` directly instead
+    """
+    return __version__
 
 
 def get_version():
     """
     Resolve `datadog` package version.
+
+    Deprecated: use `datadog.__version__` directly instead
     """
-    try:
-        return get_pkg_version()
-    except pkg.DistributionNotFound:
-        return u"Please install `datadog` with setup.py"
+    return __version__

datadog/version.py

@@ -0,0 +1 @@
+__version__ = "0.37.0.dev"

setup.py

@@ -14,6 +14,9 @@ def get_readme_md_contents():
         long_description = f.read()
         return long_description
 
+version = {}
+with open("datadog/version.py") as fp:
+    exec(fp.read(), version)
 
 install_reqs = ["decorator>=3.3.2", "requests>=2.6.0"]
 
@@ -25,7 +28,7 @@ def get_readme_md_contents():
 
 setup(
     name="datadog",
-    version="0.37.0.dev",
+    version=version["__version__"],
     install_requires=install_reqs,
     tests_require=["pytest", "mock", "freezegun"],
     packages=["datadog", "datadog.api", "datadog.dogstatsd", "datadog.threadstats", "datadog.util", "datadog.dogshell"],

tests/unit/dogstatsd/test_statsd.py

@@ -25,10 +25,10 @@
 
 # datadog
 from datadog import initialize, statsd
+from datadog import __version__ as version
 from datadog.dogstatsd.base import DogStatsd
 from datadog.dogstatsd.context import TimedContextManagerDecorator
 from datadog.util.compat import is_higher_py35, is_p3k
-from datadog.util.config import get_version
 from tests.util.contextmanagers import preserve_environment_variable, EnvVars
 from tests.unit.dogstatsd.fixtures import load_fixtures
 
@@ -78,7 +78,6 @@ def send(self, payload):
 
 
 def telemetry_metrics(metrics=1, events=0, service_checks=0, bytes_sent=0, bytes_dropped=0, packets_sent=0, packets_dropped=0, transport="udp", tags=""):
-    version = get_version()
     tags = "," + tags if tags else ""
 
     return "\ndatadog.dogstatsd.client.metrics:{}|c|#client:py,client_version:{},client_transport:{}{}\n".format(metrics, version, transport, tags) \