[EN-1712] version for dev environment

dxfeed/__init__.py

@@ -1,6 +1,12 @@
 from dxfeed.wrappers.endpoint import Endpoint
 from dxfeed.core.utils.handler import EventHandler, DefaultHandler
 import pkg_resources
+import toml
+from pathlib import Path
 
 
-__version__ = pkg_resources.get_distribution('dxfeed').version
+try:
+    __version__ = pkg_resources.get_distribution('dxfeed').version
+except pkg_resources.DistributionNotFound:
+    pyproject = toml.load(Path(__file__).parents[1] / 'pyproject.toml')
+    __version__ = pyproject['tool']['poetry']['version']

pyproject.toml

@@ -31,25 +31,24 @@ exclude = ['dxfeed/dxfeed-c-api/wrappers*',
 [tool.poetry.dependencies]
 python = '^3.6'
 pandas = '^0.25.1'
+toml = '^0.10.0'
 # The following dependencies are used for docs generation when installed as extras
 # (e.g. pip install nornir[docs])
 # Currently they have to be specified as non-dev dependencies with optional = true
 # Refer to: https://github.com/sdispater/poetry/issues/129
 # Issue to watch for: https://github.com/python-poetry/poetry/issues/1644
-toml = { version = '^0.10.0', optional = true }
 jupyter = { version = '^1.0.0', optional = true }
 
 [tool.poetry.dev-dependencies]
 cython = '^0.29.13'
 taskipy = '^1.1.3'
 pytest = '^5.3.5'
 sphinx = '^2.4.4'
-toml = '^0.10.0'
 sphinx_rtd_theme = '^0.4.3'
 pygments = '^2.6.1'
 
 [tool.poetry.extras]
-docs = ['toml', 'jupyter']
+docs = ['jupyter']
 
 [tool.taskipy.tasks]
 clear = 'find dxfeed/core -type f \( -iname *.c -o -iname *.cpp -o -iname *.pyd -o -iname *.so \) -delete'