Update license notice

djshem · Aug 22, 2021 · a0b7135 · a0b7135
1 parent 667ad32
commit a0b7135
Show file tree

Hide file tree

Showing 88 changed files with 90 additions and 88 deletions.
diff --git a/README.md b/README.md
@@ -529,7 +529,9 @@ After making changes, make sure you did not break any functionality:
 pytest
 ```
 
-Please make sure to update tests as appropriate.
+Make sure to update tests as appropriate.
+
+Please note: contribution to this project requires signing a Contributor Licence Agreement (CLA).
 
 ## License
 

diff --git a/apps/candlestick-patterns/app.py b/apps/candlestick-patterns/app.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 # Run this app with `python app.py` and

diff --git a/vectorbt/__init__.py b/vectorbt/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Ultimate Python library for time series analysis and backtesting at scale.

diff --git a/vectorbt/_settings.py b/vectorbt/_settings.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Global settings.

diff --git a/vectorbt/_typing.py b/vectorbt/_typing.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """General types used in vectorbt."""

diff --git a/vectorbt/_version.py b/vectorbt/_version.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 __version__ = "0.21.0"
diff --git a/vectorbt/base/__init__.py b/vectorbt/base/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules with base classes and utilities for pandas objects, such as broadcasting."""

diff --git a/vectorbt/base/accessors.py b/vectorbt/base/accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Custom pandas accessors.

diff --git a/vectorbt/base/array_wrapper.py b/vectorbt/base/array_wrapper.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class for wrapping NumPy arrays into Series/DataFrames.

diff --git a/vectorbt/base/column_grouper.py b/vectorbt/base/column_grouper.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class that exposes methods to group columns.

diff --git a/vectorbt/base/combine_fns.py b/vectorbt/base/combine_fns.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Functions for combining arrays.

diff --git a/vectorbt/base/index_fns.py b/vectorbt/base/index_fns.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Functions for working with index/columns.

diff --git a/vectorbt/base/indexing.py b/vectorbt/base/indexing.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Classes for indexing.

diff --git a/vectorbt/base/reshape_fns.py b/vectorbt/base/reshape_fns.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Functions for reshaping arrays.

diff --git a/vectorbt/data/__init__.py b/vectorbt/data/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for working with data sources."""

diff --git a/vectorbt/data/base.py b/vectorbt/data/base.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base data class.

diff --git a/vectorbt/data/custom.py b/vectorbt/data/custom.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Custom data classes that subclass `vectorbt.data.base.Data`."""

diff --git a/vectorbt/data/updater.py b/vectorbt/data/updater.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class for scheduling data updates."""

diff --git a/vectorbt/generic/__init__.py b/vectorbt/generic/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for working with any time series.

diff --git a/vectorbt/generic/accessors.py b/vectorbt/generic/accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Custom pandas accessors for generic data.

diff --git a/vectorbt/generic/decorators.py b/vectorbt/generic/decorators.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class and function decorators."""

diff --git a/vectorbt/generic/drawdowns.py b/vectorbt/generic/drawdowns.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with drawdown records.

diff --git a/vectorbt/generic/enums.py b/vectorbt/generic/enums.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Named tuples and enumerated types.

diff --git a/vectorbt/generic/nb.py b/vectorbt/generic/nb.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Numba-compiled functions.

diff --git a/vectorbt/generic/plot_builder.py b/vectorbt/generic/plot_builder.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Mixin for building plots out of subplots."""

diff --git a/vectorbt/generic/plotting.py b/vectorbt/generic/plotting.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base plotting functions.

diff --git a/vectorbt/generic/ranges.py b/vectorbt/generic/ranges.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with range records.

diff --git a/vectorbt/generic/splitters.py b/vectorbt/generic/splitters.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Splitters for cross-validation.

diff --git a/vectorbt/generic/stats_builder.py b/vectorbt/generic/stats_builder.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Mixin for building statistics out of performance metrics."""

diff --git a/vectorbt/indicators/__init__.py b/vectorbt/indicators/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for building and running indicators.

diff --git a/vectorbt/indicators/basic.py b/vectorbt/indicators/basic.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Indicators built with `vectorbt.indicators.factory.IndicatorFactory`.

diff --git a/vectorbt/indicators/configs.py b/vectorbt/indicators/configs.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Common configurations for indicators."""

diff --git a/vectorbt/indicators/factory.py b/vectorbt/indicators/factory.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """A factory for building new indicators with ease.

diff --git a/vectorbt/indicators/nb.py b/vectorbt/indicators/nb.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Numba-compiled functions.

diff --git a/vectorbt/labels/__init__.py b/vectorbt/labels/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for building and running look-ahead indicators and label generators."""

diff --git a/vectorbt/labels/enums.py b/vectorbt/labels/enums.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Named tuples and enumerated types.

diff --git a/vectorbt/labels/generators.py b/vectorbt/labels/generators.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Basic look-ahead indicators and label generators.

diff --git a/vectorbt/labels/nb.py b/vectorbt/labels/nb.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Numba-compiled functions.

diff --git a/vectorbt/messaging/__init__.py b/vectorbt/messaging/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for messaging."""

diff --git a/vectorbt/messaging/telegram.py b/vectorbt/messaging/telegram.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Messaging using `python-telegram-bot`."""

diff --git a/vectorbt/ohlcv_accessors.py b/vectorbt/ohlcv_accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Custom pandas accessors for OHLC(V) data.

diff --git a/vectorbt/portfolio/__init__.py b/vectorbt/portfolio/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for working with portfolios."""

diff --git a/vectorbt/portfolio/base.py b/vectorbt/portfolio/base.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for modeling portfolio and measuring its performance.

diff --git a/vectorbt/portfolio/decorators.py b/vectorbt/portfolio/decorators.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class and function decorators."""

diff --git a/vectorbt/portfolio/enums.py b/vectorbt/portfolio/enums.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Named tuples and enumerated types.

diff --git a/vectorbt/portfolio/logs.py b/vectorbt/portfolio/logs.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with log records.

diff --git a/vectorbt/portfolio/nb.py b/vectorbt/portfolio/nb.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Numba-compiled functions.

diff --git a/vectorbt/portfolio/orders.py b/vectorbt/portfolio/orders.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with order records.

diff --git a/vectorbt/portfolio/trades.py b/vectorbt/portfolio/trades.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with trade records.

diff --git a/vectorbt/px_accessors.py b/vectorbt/px_accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Plotly Express pandas accessors.

diff --git a/vectorbt/records/__init__.py b/vectorbt/records/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for working with records.

diff --git a/vectorbt/records/base.py b/vectorbt/records/base.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with records.

diff --git a/vectorbt/records/col_mapper.py b/vectorbt/records/col_mapper.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class for mapping column arrays."""

diff --git a/vectorbt/records/decorators.py b/vectorbt/records/decorators.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Class and function decorators."""

diff --git a/vectorbt/records/mapped_array.py b/vectorbt/records/mapped_array.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Base class for working with mapped arrays.

diff --git a/vectorbt/records/nb.py b/vectorbt/records/nb.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Numba-compiled functions.

diff --git a/vectorbt/returns/__init__.py b/vectorbt/returns/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for working with returns.

diff --git a/vectorbt/returns/accessors.py b/vectorbt/returns/accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Custom pandas accessors for returns data.

diff --git a/vectorbt/returns/metrics.py b/vectorbt/returns/metrics.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Other metrics that are not compiled with Numba."""

diff --git a/vectorbt/returns/nb.py b/vectorbt/returns/nb.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Numba-compiled functions.

diff --git a/vectorbt/root_accessors.py b/vectorbt/root_accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Root pandas accessors.

diff --git a/vectorbt/signals/__init__.py b/vectorbt/signals/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Modules for working with signals, such as entry and exit signals."""

diff --git a/vectorbt/signals/accessors.py b/vectorbt/signals/accessors.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Custom pandas accessors for signals data.

diff --git a/vectorbt/signals/enums.py b/vectorbt/signals/enums.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """Named tuples and enumerated types.

diff --git a/vectorbt/signals/factory.py b/vectorbt/signals/factory.py
@@ -1,4 +1,4 @@
-# Copyright 2021 Oleg Polakow
+# Copyright (c) 2021 Oleg Polakow. All rights reserved.
 # This code is licensed under Apache 2.0 with Commons Clause license (see LICENSE.md for details)
 
 """A factory for building new signal generators with ease.