Problem:
def tradingview(): is infite loop which should return two numbers
def tradingview():
while True:
with open(filepath, 'r') as f:
count_var_short = f.read().count('Exit Short Open')
print('Current shorts open:',count_var_short)
with open(filepath, 'r') as f:
count_var_long = f.read().count('Exit Long Open')
print('Current longs open:',count_var_long)
return (count_var_short,count_var_long)
def target_balance(count_var_short,count_var_long):
current_target = cur_price_VWAP['vwap'] * freebalance['BTC']['free']
print ('current_target long',current_target * count_var_short)
print ('current_target short',current_target * count_var_long)
if __name__ == '__main__':
Thread(target = tradingview).start()
Thread(target = target_balance(count_var_short,count_var_long)).start()
This code gives error
Thread(target = target_balance(count_var_short,count_var_long)).start()
NameError: name 'count_var_short' is not defined
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i want def tradingview(): return two numbers
count_var_short and count_var_long
and use them in function
def target_balance(count_var_short,count_var_long):
i know i should read how return works, but i will very thankful if someone help me on my own code because it is much more understandable for me.
Rather than a function with a single return value, you are looking to create a generator, which yields an expression, and then resumes execution.
You can rewrite tradingview to be an infinite generator:
def tradingview():
while True:
with open(filepath, 'r') as f:
count_var_short = f.read().count('Exit Short Open')
print('Current shorts open:',count_var_short)
with open(filepath, 'r') as f:
count_var_long = f.read().count('Exit Long Open')
print('Current longs open:',count_var_long)
yield count_var_short, count_var_long
The yield expression inside the loop will "return" the values you want before resuming execution. It will also turn tradingview from a regular function into a generator function, which returns the generator when called.
Now you can rewrite the code that calls target_balance to use the generator:
if __name__ == '__main__':
for count_var_short, count_var_long in tradingview():
target_balance(count_var_short,count_var_long)
No need for strange threading behavior: Python has already supplied the behavior you need with generators. I suggest you read up on them (and the yield keyword in general).