import
log
logging
math
path
re
time
from
reduce
pool
po
tag
build
vocabulary
file
reader
with
open
join
assert
encode
encoding
as
coca
list
read
split
level
info
handler
message
now
m
class
run
text
word
a
lower
token
return
tagged
for
in
if
none
find
start
and
end
index
marker
head
search
not
warn
warning
else
span
tail
process
save
set
string
item
group
i
range
flag
false
enumerate
write
true
segment
exclude
exist
ok
format
directory
result
single
append
apply
get
processing
merge
or
recursive
lambda
integrate
integrating
main
filter
record
description
add
mutually
exclusive
argument
default
type
help
action
store
ex
parse
root
learn
learned
update
name
error
sub
zip
suffix
replace
print