import os import pandas as pd def create_1(): features_dir="./datasets/features" files = [a for a in sorted(os.listdir(features_dir), key=lambda x: str(x[5:]))] for file in files: print(file) d = pd.read_csv(os.path.join(features_dir, file)) a = pd.DataFrame() a = d.iloc[0:51][:] p = os.path.join(features_dir, "test"+file) a.to_csv(p) # create_1() def create_2(): code = "sz.300001.csv" file="./datasets/features/" + code d = pd.read_csv(file) a = pd.DataFrame() a = d.iloc[0:52][:] p = os.path.join("./datasets/feature1", code) a.to_csv(p) create_2()