KeyError python

Bonsoir

J'ai déjà envoyé un message sur le forum par rapport à mon programme, mais là j'ai un autre problème.

Quand je veux faire la recherche de figures géométriques (avec la fonction search_figures) dans laquelle j'ajoute la variable (df) dans le programme ci-dessous j'ai un message d'erreur qui est celui-ci:

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<interactive input>", line 1, in <module>
  File "C:\Users\LOIC\Desktop\polygone3.py", line 54, in polygone_find
    xA=A[tri[0]+1]
  File "C:\EduPython\App\lib\site-packages\pandas\core\frame.py", line 2800, in __getitem__
    indexer = self.columns.get_loc(key)
  File "C:\EduPython\App\lib\site-packages\pandas\core\indexes\base.py", line 2648, in get_loc
    return self._engine.get_loc(self._maybe_cast_indexer(key))
  File "pandas\_libs\index.pyx", line 111, in pandas._libs.index.IndexEngine.get_loc
  File "pandas\_libs\index.pyx", line 138, in pandas._libs.index.IndexEngine.get_loc
  File "pandas\_libs\hashtable_class_helper.pxi", line 1619, in pandas._libs.hashtable.PyObjectHashTable.get_item
  File "pandas\_libs\hashtable_class_helper.pxi", line 1627, in pandas._libs.hashtable.PyObjectHashTable.get_item
KeyError: 1

#ce programme sert à reconnaitre des figures géométriques particulières dans un nuage de points


import pandas as pd
df = pd.read_csv("monFichier_test.csv")
print (df)


'''cette fonction permet de definir un carré'''
def test_carre(xA,yA,xB,yB,xC,yC,xD,yD):
    a=((xB-xA)**2+(yB-yA)**2)
    b=((xC-xB)**2+(yC-yB)**2)
    c=((xD-xC)**2+(yD-yC)**2)
    d=((xA-xD)**2+(yA-yD)**2)
    if a==b==c==d and ((xC-xB)*(xD-xC)+(yC-yB)*(yD-yC))==0 and ((xB-xA)*(xA-xD)+(yB-yA)*(yA-yD))==0:
        return True
    else:
        return False

'''cette fonction permet de definir un rectangle '''
def test_rectangle(xA,yA,xB,yB,xC,yC,xD,yD):
    a=((xB-xA)**2+(yB-yA)**2)
    b=((xC-xB)**2+(yC-yB)**2)
    c=((xD-xC)**2+(yD-yC)**2)
    d=((xA-xD)**2+(yA-yD)**2)
    if a==c and b==d and ((xC-xB)*(xD-xC)+(yC-yB)*(yD-yC))==0 and ((xB-xA)*(xA-xD)+(yB-yA)*(yA-yD))==0:
         return True
    else:
         return False


'''cette fonction permet de definir un triangle rectangle'''
def test_trianglerectangle(xA,yA,xB,yB,xC,yC):
    a=((xB-xA)**2+(yB-yA)**2)
    b=((xC-xB)**2+(yC-yB)**2)
    c=((xA-xC)**2+(yA-yC)**2)
    if b*b==a*a+c*c and ((xB-xA)*(xC-xA)+(yB-yA)*(yC-yA))==0:
        return True
    else:
         return False


from itertools import*
def search_figures(A):
    n=len(A)
    B=list(range(0,n,2))
    trianglerectangle=[]
    carre=[]
    rectangle=[]
    RESULTAT={}
    '''je fais la recherche de triangles rectangles'''
    C=list(combinations(B,4))
    for tri in C:
        xA=A[tri[0]]
        yA=A[tri[0]+1]
        xB=A[tri[1]]
        yB=A[tri[1]+1]
        xC=A[tri[2]]
        yC=A[tri[2]+1]
        print("av",xA,yA,xB,yB,xC,yC)
        if test_trianglerectangle(xA,yA,xB,yB,xC,yC):
            test_trianglerectangle.append((tri[0],tri[1],tri[2]))
    RESULTAT.update({"trianglerectangle":trianglerectangle})

    '''je fais la recherche de carré'''
    C=list(combinations(B,4))
    for tri in C:
        xA=A[tri[0]]
        yA=A[tri[0]+1]
        xB=A[tri[1]]
        yB=A[tri[1]+1]
        xC=A[tri[2]]
        yC=A[tri[2]+1]
        xD=A[tri[3]]
        yD=A[tri[3]+1]
        print("av",xA,yA,xB,yB,xC,yC,xD,yD)
        if test_carre(xA,yA,xB,yB,xC,yC,xD,yD):
            carre.append((tri[0],tri[1],tri[2],tri[3]))
    RESULTAT.update({"carre":carre})

    '''je fais la recherche de rectangle'''
    C=list(combinations(B,4))
    for tri in C:
        xA=A[tri[0]]
        yA=A[tri[0]+1]
        xB=A[tri[1]]
        yB=A[tri[1]+1]
        xC=A[tri[2]]
        yC=A[tri[2]+1]
        xD=A[tri[3]]
        yD=A[tri[3]+1]
        print("av",xA,yA,xB,yB,xC,yC,xD,yD)
        if test_rectangle(xA,yA,xB,yB,xC,yC):
            rectangle.append((tri[0],tri[1],tri[2],tri[3]))
    RESULTAT.update({"rectangle":rectangle})

    '''la  structure retournée est le dictionnaire RESULTAT'''
    return(RESULTAT)


import matplotlib.pyplot as plt
x = [47.17788031846174
,9.155162513788252
,87.31106451765086
,90.18098777410545
,85.73425568394163
,69.21660923542944
,87.42386051005897
,35.27685634185226
,83.01845522622216
,45.32537448340496
,51.322646552859695
,69.9527028251635
,3.08569815272679
,66.30463831578771
,62.41033400206221
,80.05712601988002
,10
,10
,70
,10
,30
,90
,70
,30
,70
,89.11423668645706
,92.58342391495769
,44.22604145548783
,95.42720095700402
,21.435826737054732
,19.37910846507328
,48.943206051376606
,97.68362835412275
,72.59631895251266
,63.809973321904366
,31.42076659631765
,83.88946390215908
,62.116866264263216
,16.46862820087156]


y = [7.856866949374341
,32.60533028920386
,7.9593054773530625
,97.74037355348855
,11.752247867249043
,19.38838353746982
,23.839873731365046
,13.752179944089926
,31.00629476536042
,9.428326440424428
,59.5011025964827
,73.64015636941087
,55.46780269542562
,28.89261106782417
,41.65910883295687
,2.6141574612408958
,10
,70
,10
,10
,50
,50
,10
,10
,50
,73.20222328424518
,16.76132763110746
,1.0615177467627968
,17.271594103822896
,14.310405723515663
,57.269925634522856
,82.43371784928712
,48.3488192958625
,56.325210197081134
,12.977441456959616
,59.135914263212065
,23.574727012142937
,45.42966847449507
,63.35434423882829]

plt.scatter(x,y)

plt.title('poco y para avec Matplotlib')
plt.xlabel('x')
plt.ylabel('y')
plt.savefig('ScatterPlot_01.png')
plt.plot(x,y)
plt.show()

pourriez vous m'aider svp ?