loop through a list of names to pull files and assign to a dictionary in Python-CodePudding

I have a folder with different files of stock prices that I need to pull into python and then save to a dictionary. I'm trying to do this with a for loop and a list of names. Currently, when I run my code the console just sits there loading forever and never outputs anything or signals that it is done. This is what I currently have:

# Dictionary
results = {}
#Read in data from files (example: AAPL.txt)
tickers = ["AAPL", "ADBE", "DAL", "F", "GOOG", "GPRO", "NCLH", "NFLX", "RUN", "SBUX"]
for ticker in tickers:
    file = open("/user/code/"<ticker>".txt")
    lines = file.readlines()
    results["<ticker>_prices"].append(float(lines))

print(results)

This code doesn't even run, the console just runs and runs and the dictionary results = {} is still empty if I stop it and check.

CodePudding user response：

Execute the following statement:

for ticker in tickers:
    print("/user/code/"<ticker>".txt")

The output is all true.

Maybe you should do this:

file = open("/user/code/"   ticker   ".txt")

CodePudding user response：

IIUC, this should work. Since each ticker is a file name, you could open and read each file, then map each line to a float and assign to results under key f"{ticker}_prices":

results = {}
for ticker in tickers:
    with open(f"/user/code/{ticker}.txt") as file:
        lines = file.readlines()
        results[f"{ticker}_prices"] = list(map(float, lines))