题解 | #Python用户的平均提交次数#

import pandas as pd
import numpy

data = pd.read_csv("Nowcoder.csv", sep=",")
pd.set_option("display.width", 300)
pd.set_option("display.max_rows", None)
pd.set_option("display.max_columns", None)
# print(round(data[data['Language']=='Python']['Number_of_submissions'].mean(),1))
print(
    round(
        data[data["Language"] == "Python"]["Number_of_submissions"].sum()
        / data["Language"].value_counts()["Python"],
        1,
    )
)