Add print version command

CHANGELOG.rst

@@ -9,6 +9,10 @@ and this project adheres to `Semantic Versioning <https://semver.org/spec/v2.0.0
 ---------------------
 `Unreleased`_ - 2021-06-06
 ---------------------
+Added
+-----
+- Read version from bot
+
 Removed
 -------
 - Python 3.7 support removed

poetry.lock

@@ -206,6 +206,14 @@ numpy = ">=1.13.3"
 pandas = ">=0.22.0"
 scipy = ">=1.0.1"
 
+[[package]]
+name = "single-source"
+version = "0.2.0"
+description = "Access to the project version in Python code for PEP 621-style projects"
+category = "main"
+optional = false
+python-versions = ">=3.6,<4.0"
+
 [[package]]
 name = "six"
 version = "1.16.0"
@@ -295,7 +303,7 @@ pytz = "*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "73f34816a5987de3cea064d181b87991feb54cef2dac3fa121c63c3d4b7bb63f"
+content-hash = "069c3d56fda909d2551de171c4ced953a65bc6eca755970d6cd498bfb6994da3"
 
 [metadata.files]
 appdirs = [
@@ -582,6 +590,10 @@ seaborn = [
     {file = "seaborn-0.10.1-py3-none-any.whl", hash = "sha256:c901ce494541fb4714cfa7db79d0232dc3f4c4dfd3f273bacf17816084df5b53"},
     {file = "seaborn-0.10.1.tar.gz", hash = "sha256:2d1a0c9d6bd1bc3cadb0364b8f06540f51322a670cf8438d0fde1c1c7317adc0"},
 ]
+single-source = [
+    {file = "single-source-0.2.0.tar.gz", hash = "sha256:f40f94c7f2e72c854b9c0c6f7d6b545d74ada9ebd454f9f07f8fb743b22bccf5"},
+    {file = "single_source-0.2.0-py3-none-any.whl", hash = "sha256:82c55b00515a30c8f7c262b986a399ca023911ebb6a86f0953d4c50448c36b16"},
+]
 six = [
     {file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},
     {file = "six-1.16.0.tar.gz", hash = "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"},

pyproject.toml

@@ -18,6 +18,7 @@ seaborn = "^0.10.1"
 numpy = "^1.18.4"
 matplotlib = "^3.2.1"
 appdirs = "^1.4.4"
+single-source = "^0.2.0"
 
 [tool.poetry.dev-dependencies]
 

telegram_stats_bot/__init__.py

@@ -0,0 +1,4 @@
+from pathlib import Path
+from single_source import get_version
+
+__version__ = get_version(__name__, Path(__file__).parent.parent)

telegram_stats_bot/stats.py

@@ -36,6 +36,7 @@ from matplotlib.dates import date2num
 from sqlalchemy.engine import Engine
 
 from .utils import escape_markdown
+from . import __version__
 
 sns.set_context('paper')
 sns.set_style('whitegrid')
@@ -59,6 +60,9 @@ class InternalParser(argparse.ArgumentParser):
     def print_help(self, file=None) -> None:
         raise HelpException(self.format_help())
 
+    def _print_message(self, message: str, file=None) -> None:
+        raise HelpException(message)
+
     def exit(self, status=None, message=None):
         pass
 
@@ -879,6 +883,8 @@ def get_parser(runner: StatsRunner) -> InternalParser:
     parser.set_defaults(func=runner.get_chat_counts)
     subparsers = parser.add_subparsers(title="Statistics:")
 
+    parser.add_argument('-v', '--version', action='version', version=__version__)
+
     for name, func in runner.allowed_methods.items():
         try:
             doc = inspect.getdoc(getattr(runner, func)).splitlines()