Pandas Shift Colonnes jusqu'à la valeur
#We create a function to shift up the data of each column up until the first actual number
def shift_up(data):
i=0
while(i<len(data.columns)):
while(pd.isnull(data.iloc[0,i])==True):
data.iloc[:,i]=data.iloc[:,i].shift(-1)
i+=1
return data
M.U