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Merge pull request #6560 from freqtrade/inject_path_iresolver

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Inject path to strategy loading
This commit is contained in:
Matthias
2022-03-21 19:09:14 +01:00
committed by GitHub
parent 7eddc09c1c e9c4e6a69d
commit 4e52055a17
4 changed files with 54 additions and 112 deletions
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16
docs/strategy-advanced.md
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@@ -146,7 +146,7 @@ def version(self) -> str:
The strategies can be derived from other strategies. This avoids duplication of your custom strategy code. You can use this technique to override small parts of your main strategy, leaving the rest untouched:
``` python
``` python title="user_data/strategies/myawesomestrategy.py"
class MyAwesomeStrategy(IStrategy):
...
stoploss = 0.13
@@ -155,6 +155,10 @@ class MyAwesomeStrategy(IStrategy):
# should be in any custom strategy...
...
```
``` python title="user_data/strategies/MyAwesomeStrategy2.py"
from myawesomestrategy import MyAwesomeStrategy
class MyAwesomeStrategy2(MyAwesomeStrategy):
# Override something
stoploss = 0.08
@@ -163,15 +167,13 @@ class MyAwesomeStrategy2(MyAwesomeStrategy):
Both attributes and methods may be overridden, altering behavior of the original strategy in a way you need.
While keeping the subclass in the same file is technically possible, it can lead to some problems with hyperopt parameter files.
!!! Note "Parent-strategy in different files"
If you have the parent-strategy in a different file, you'll need to add the following to the top of your "child"-file to ensure proper loading, otherwise freqtrade may not be able to load the parent strategy correctly.
If you have the parent-strategy in a different file, you can still import the strategy.
Assuming `myawesomestrategy.py` is the filename, and `MyAwesomeStrategy` the strategy you need to import:
``` python
import sys
from pathlib import Path
sys.path.append(str(Path(__file__).parent))
from myawesomestrategy import MyAwesomeStrategy
```
## Embedding Strategies