extract substring from string python based on pattern code example

Example: python extract substring

# string [start:end:step]
string = "freeCodeCamp"
print(string[0:len(string)-1])		# freeCodeCam
print(string[0:5])		            # freeC
print(string[2:6])		            # eeCo
print(string[-1])		            # p
print(string[-5:])		            # eCamp
print(string[1:-4])                 # reeCode
print(string[-5:-2])	            # eCa
print(string[::2])		            # feCdCm