Update installation procedure and documentation.

README.md

@@ -17,11 +17,13 @@ Dependencies are also available on pip (useful on systems without native package
 The latest version of pymlab library use true I²C transfers instead of SMBus transfers. It is needed by some sensors. Namely by SHT31, SHT25 etc.  Therefore an updated version of i2c-tools and python-smbus module is needed for correct working of pymlab library and some examples.
 The latest version of python-smbus could be installed from [this fork of i2c-tools](https://github.com/MLAB-project/i2c-tools).
 
-### Install in to Ubuntu python system
+### Install in to Ubuntu venv system
+
+Create venv by `python3 -m ven .venv` then activate it using `source .venv/bin/activate` in the python enviroment you can install the pymlab library: 
 
     $ git clone https://github.com/MLAB-project/pymlab
     $ cd pymlab/
-    $ sudo python3 setup.py develop
+    $ pip install -e .
 
 #### HIDAPI interface for the USBI2C01A  MLAB module (Optional support)
 

pyproject.toml

@@ -0,0 +1,44 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel", "setuptools_scm"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "pymlab"
+dynamic = ["version"]
+description = "Toolbox for interfacing I2C sensors."
+readme = "README.md"
+license = {text = "Lesser General Public License v3"}
+authors = [
+    {name = "Jan Milík", email = "milikjan@fit.cvut.cz"},
+    {name = "Roman Dvořák", email = "romandvorak@mlab.cz"},
+    {name = "Jakub Kákona", email = "kaklik@mlab.cz"}
+]
+keywords = ["TWI", "IIC", "I2C", "USB", "sensors", "drivers"]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",
+    "Natural Language :: Czech",
+    "Programming Language :: Python :: 2.6",
+    "Programming Language :: Python :: 2.7"
+]
+
+dependencies = [
+    "smbus",
+    "six",
+    "numpy",
+    "hidapi"
+]
+
+[project.optional-dependencies]
+test = ["pytest"]
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+packages = ["pymlab", "pymlab.sensors", "pymlab.tests"]
+
+[tool.setuptools_scm]
+version_scheme = "guess-next-dev"
+local_scheme = "node-and-date"
+
+