PDB Set Trace
import pdb; pdb.set_trace()
Clumsy Copperhead
import pdb; pdb.set_trace()#preinstalled package
import pdb; pdb.set_trace()import pdb
def fact(x):
f = 1
for i in range(1,x+1):
pdb.set_trace()
print (i)
f = f * i
return f
if __name__=="__main__":
print ("factorial of 3=",fact(3))import ipdb; ipdb.set_trace()