2. Rebanar

• Rebanada del primer índice al anterior del segundo

1 x = "0123456789" 2 print(x[0:2]) 3 print(x[1:2]) 4 print(x[2:4]) 5 print(x[0:5]) 6 print(x[1:8]) Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 6 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 2.1 (cl_l18_2a)

• Podemos omitir índices, sustituyendo el extremo correspondiente y también podemos tener índices negativos: -1 último, -2 penúltimo

1 x = "0123456789" 2 print(x[:2]) 3 print(x[4:]) 4 print(x[4:-1]) 5 print(x[-4:-1]) 6 print(x[:]) Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 6 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 2.2 (cl_l18_2b)

2.1. Incremento en el corte

• Puedo usar un incremento al cortar el string

1 texto = "papa cuando nace" 2 print(texto[::2]) 3 print(texto[::-1]) Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 3 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 2.1.1 (cl_l18_2c)

• Comprobar si una palabra es palíndrome

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6

 

1

palabra = input("Palabra: ")

2

if palabra == palabra[::-1]:

3

    print("%s es palíndrome" % palabra)

4

else:

5

    print("%s no es un palíndrome" % palabra)

6

​

Activity: 2.1.2 ActiveCode (ac_l18_2)

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