CODE EXAMPLE FOR PYTHON

check if value in dictionary keys python dataframe

df.Team.replace(d,inplace=True)
df
Out[176]: 
    Market  Status             Team
0  Chicago       1    tom@email.com
1  Chicago       1    tom@email.com
2    SFBay       3  Julia@email.com
3    SFBay       1  Julia@email.com
4    SFBay       1  Julia@email.com