如何在 python 3.0 中修复这种类型的错误？每当我使用传递参数（dict{}）时，它都会显示这种类型的错误“NameError: name 'P' is not defined”

 def bowling(p1,p2,p3,p4,p5):
        x=1
        while x<6:
            print(px.get('role'))   

“NameError：未定义名称‘P’”

 x=x+1
 p1={'name':'Virat Kohli', 'role':'bat', 'runs':112, '4':10, '6':0, 'balls':119, 'field':0}
 p2={'name':'du Plessis', 'role':'bat', 'runs':120, '4':11, '6':2, 'balls':112, 'field':0}
 p3={'name':'Bhuvneshwar Kumar', 'role':'bowl', 'wkts':1, 'overs':10, 'runs':71, 'field':1}
 p4={'name':'Yuzvendra Chahal', 'role':'bowl', 'wkts':2, 'overs':10, 'runs':45, 'field':0}
 p5={'name':'Kuldeep Yadav', 'role':'bowl', 'wkts':3, 'overs':10, 'runs':34, 'field':0}
 bowling(p1,p2,p3,p4,p5)    #passing dict as argument