Message from Python discussions

December 2018

— new_list = filter(None, my_lists)

—

Language:

py3

Source:

my_list = [
  ['list'],
  [],
  ['list too']
]
print(filter(None,my_list))

Result:

<filter object at 0x7f4ffdba94a8>

— That's right

— Wrap it in list

— list(filter(None, my_list)) if you want to have a list from filter

— `print(list(filter(None, my_list)))`

— Language:

py3

Source:

ok = []
my_list = [
  ['list'],
  [],
  ['list too']
]
for i in my_list:
      ok.append(list(filter(None, i)))
print(ok)

# how if in append ?

Result:

[['list'], [], ['list too']]

— .... why?

— Language:

python3

Source:

my_list = [
  ['list'],
  [],
  ['list too']
]
print(list(filter(None,my_list)))

Result:

[['list'], ['list too']]

— Language:

py3

Source:

ok = []
my_list = [
  ['list'],
  [],
  ['list too']
]
for i in list(filter(None, my_list)):
      ok.append({'o': i})
print(ok)

Result:

[{'o': ['list']}, {'o': ['list too']}]

— Or this?

— How to print binary of 1024