Learn Python List Comprehension by Building a Case Converter Program - Step 19

Tell us what’s happening:

I tried two different approaches.Neither of these approaches passed the test.

Approach 1:“snake_cased_char_list = [‘_’+char.lower() for char in pascal_or_camel_cased_string]”

Output 1:“a_l_o_n_g_a_n_d_c_o_m_p_l_e_x_s_t_r_i_n_g”

Approach 2:“snake_cased_char_list = [‘_’+char.lower() if char.isupper() else char for char in pascal_or_camel_cased_string]”

Output 2:“a_long_and_complex_string”

Your code so far

def convert_to_snake_case(pascal_or_camel_cased_string):
    # snake_cased_char_list = []
    # for char in pascal_or_camel_cased_string:
    #     if char.isupper():
    #       converted_character = '_' + char.lower()
    #       snake_cased_char_list.append(converted_character)
    #     else:
    #         snake_cased_char_list.append(char)
    # snake_cased_string = ''.join(snake_cased_char_list)
    # clean_snake_cased_string = snake_cased_string.strip('_')

    # return clean_snake_cased_string


# User Editable Region

    snake_cased_char_list = []
    snake_cased_char_list = ['_'+char.lower() for char in pascal_or_camel_cased_string]

# User Editable Region

    return ''.join(snake_cased_char_list).strip('_')

def main():
    print(convert_to_snake_case('aLongAndComplexString'))

main()

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 Edg/130.0.0.0

Challenge Information:

Learn Python List Comprehension by Building a Case Converter Program - Step 19

you need to replace this line

1 Like

Thank you.I’ve figured it out.It had me stuck for over an hour.