给定一个数据框如下：
player score
0 Sergio Agüero Forward — Manchester City 209.98
1 Eden Hazard Midfield — Chelsea 274.04
2 Alexis Sánchez Forward — Arsenal 223.86
3 Yaya Touré Midfield — Manchester City 197.91
4 Angel María Midfield — Manchester United 132.23
怎么会分裂player分成三个新列name, position and team?
player score name position team
0 Sergio Agüero Forward — Manchester City 209.98 Sergio Forward Manchester City
1 Eden Hazard Midfield — Chelsea 274.04 Eden Midfield Chelsea
2 Alexis Sánchez Forward — Arsenal 223.86 Alexis Forward Arsenal
3 Yaya Touré Midfield — Manchester City 197.91 Yaya Midfield Manchester City
4 Angel María Midfield — Manchester United 132.23 Angel Midfield Manchester United
我考虑过将其分成两列df[['name_position', 'team']] = df['player'].str.split(pat= ' — ', expand=True)，然后分割name_position to name and position。但还有更好的解决方案吗？
非常感谢。
您可以使用str.extract如果您想一次性完成，也可以：
print(df["player"].str.extract(r"(?P<name>.*?)\s.*?\s(?P<position>[A-Za-z]+)\s—\s(?P<team>.*)"))
name position team
0 Sergio Forward Manchester City
1 Eden Midfield Chelsea
2 Alexis Forward Arsenal
3 Yaya Midfield Manchester City
4 Angel Midfield Manchester United
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