cd
mkdir harvest
cd harvest
python3 -m venv ./
source bin/activate
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pip install harvest-python[[BROKER]]
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Replace BROKER with a brokerage/data source of your choice:

1. Robinhood
2. Alpaca
3. Webull
4. Kraken
5. Polygon

pip install harvest-python[[Alpaca]]
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Example...

from harvest.algo import *
from harvest.trader import *

class Watch(BaseAlgo):
    def config(self):
        self.watchlist = [["TSLA"]]
        self.interval = "5MIN"

    def main(self):
        sma_long = self.sma(period=50)
        sma_short = self.sma(period=20)
        if self.crossover(sma_long, sma_short):
            self.buy()
        elif self.crossover(sma_short, sma_long):
            self.sell()
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Command...

harvest start -s yahoo -b paper
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Add more stocks

from harvest.algo import *
from harvest.trader import *

class Watch(BaseAlgo):
    def config(self):
        self.watchlist = [['NVDA','TSLA','AAPL','MSFT','GOOGL','META','TSM','TCEHY','ORCL']]
        self.interval = "1MIN"

    def main(self):
        sma_long = self.sma(period=50)
        sma_short = self.sma(period=20)
        if self.crossover(sma_long, sma_short):
            self.buy()
        elif self.crossover(sma_short, sma_long):
            self.sell()
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