[Python] how to convert month to frensh month name manuelly using pandas

I have this function which convert english month to frensh month :

def changeMonth(month):
global CurrentMonth
match month:
case "Jan":
return "Janvier"
case "Feb":
return "Février"
case "Mar":
return "Mars"
case "Apr":
return "Avril"
case "May":
return "Mai"
case "Jun":
return "Juin"
case "Jul":
return "Juillet"
case "Aug":
return "Août"
case "Sep":
return "Septembre"
case "Oct":
return "Octobre"
case "Nov":
return "Novembre"
case "Dec":
return "Décembre"

# If an exact match is not confirmed, this last case will be used if provided
case _:
return ""


and i have a pandas col df["month"]= df['ic_graph']['month'].tolist() :



now what i'm looking for is to pass the df["month"] col through the changeMonth function to display the df["month"] in frensh months

by the way , i do not want to use the

>>> import locale
>>> locale.setlocale(locale.LC_ALL, 'fr_FR')


many thnaks

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