Day 2: Bug in 'str to int or float' code example: direct int('10.6') raises ValueError

[argony90]

File: 02_Day_Variables_builtin_functions/02_variables_builtin_functions.md
Section: Lines 230–237

In the section about converting string to int or float, the following code is given:

# str to int or float
num_str = '10.6'
num_float = float(num_str)  # Convert the string to a float first
num_int = int(num_float)    # Then convert the float to an integer
print('num_int', int(num_str))      # 10
print('num_float', float(num_str))  # 10.6
num_int = int(num_float)
print('num_int', int(num_int))      # 10

Problem:

• The line print('num_int', int(num_str)) will raise a ValueError, because '10.6' (a string with a decimal point) cannot be converted to int directly.
• int(num_int) in the last line is redundant, since num_int is already an int.
• The example should demonstrate casting to float first and then to int, using the variables directly in print statements.

Suggestion for corrected code:

num_str = '10.6'
num_float = float(num_str)
num_int = int(num_float)
print('num_float', num_float)  # 10.6
print('num_int', num_int)      # 10

Please fix:

• Update the code example so it does not suggest using int(num_str) directly with a string containing a decimal value
• Optionally, add a hint explaining why a direct cast to int will not work for non-integer strings and that an intermediate cast to float is necessary

Thank you!

[fumioryoto]

yes absolutely right, this is needed a fix
/#/ str to float to int

num_str = '10.6'

/#/ First convert string to float
num_float = float(num_str)

/#/ Then convert float to int
num_int = int(num_float)

print('num_float:', num_float) # 10.6
print('num_int:', num_int) # 10

[michaelfreakedwards-beep]

Yeah I I can f****** fix that easy m***********

[Rj1rohit]

num_str = '10.6'
num_float = float(num_str)
num_int = int(num_float)

print('num_float:', num_float) # 10.6
print('num_int:', num_int) # 10