def execute(self, maximum_list_length):
"""Prompt user for a file and have them enter values to write into it.
Arguments:
maximum_list_length(int): The maximum allowed list length.
"""
output_file = io.prompt_valid_file_name(
'Please enter the file to write: ')
if os.path.isfile(output_file):
self.prompt_overwrite_or_change(output_file, maximum_list_length)
if not os.path.exists(os.path.dirname(output_file)):
self.directory_does_not_exist(output_file, maximum_list_length)
total_num_entries = int(io.get_and_confirm_input(
'How many numbers will you enter: '))
num_entries_given = 0
entries = []
while num_entries_given < total_num_entries:
value = io.get_and_confirm_list(
'Entry {}: '.format(num_entries_given + 1),
max_list_length=maximum_list_length)
entries.append(value)
num_entries_given += 1
io.write_lists_to_file(output_file, entries)
print 'Results written to {}'.format(output_file)
def execute(self, maximum_list_length):
"""Prompt user for input file and output file and go through input
file line-by-line adding data.
Arguments:
maximum_list_length(int): The maximum allowed list length.
"""
input_file = io.prompt_existant_file_name(
'Please enter file to read from: ')
data = io.read_lists_from_file(input_file)
output_file = prompt_for_output_file(input_file)
updated_results = []
for index, each in enumerate(data):
if updated_results:
print_results_so_far(updated_results)
print 'Next Item:'
print each
choice = io.choose_from_list(
'What would you like to do',
['Keep', 'Add Item Before', 'Add Item After', 'Keep Rest'])
if choice == 'Keep':
updated_results.append(each)
elif choice == 'Add Item Before':
new_list = io.get_and_confirm_list(
'New item: ', max_list_length=maximum_list_length)
updated_results.append(new_list)
updated_results.append(each)
elif choice == 'Add Item After':
new_list = io.get_and_confirm_list(
'New item: ', max_list_length=maximum_list_length)
updated_results.append(each)
updated_results.append(new_list)
else:
updated_results += data[index:]
io.write_lists_to_file(output_file, updated_results)
print 'Results written to {}'.format(output_file)
def execute(self, maximum_list_length):
"""Prompt user for input and output files then go through input file
line-by-line, updated values, and write results to output file.
Arguments:
maximum_list_length(int): The maximum allowed list length
"""
input_file = io.prompt_existant_file_name(
'Please enter file to modify: ')
output_file = prompt_for_output_file(input_file)
data = io.read_lists_from_file(input_file)
updated_results = []
for index, each in enumerate(data):
if updated_results:
print_results_so_far(updated_results)
print 'Next Item:'
print each
choice = io.choose_from_list(
'What would you like to do',
['Keep', 'Change', 'Delete', 'Keep Rest'])
if choice == 'Keep':
updated_results.append(each)
elif choice == 'Change':
new_item = io.get_and_confirm_list(
'New Item: ', max_list_length=maximum_list_length)
updated_results.append(new_item)
elif choice == 'Delete':
pass
else:
updated_results += data[index:]
io.write_lists_to_file(output_file, updated_results)
print 'Results written to {}'.format(output_file)