def linecache_out_of_range():
fn = linecache_data.make_tempfile()
# the cache always return a string,
# and uses an empty string
# to indicate a line that does not exist.
not_there = linecache.getline(fn, 500)
print('NOT THERE: {!r} includes {} characters'.format(
not_there, len(not_there)))
linecache_data.cleanup(fn)
pass
def linecache_getline():
filename = linecache_data.make_tempfile()
# pick out the sanme line from source and cache
# ! (Notice that linecache counts from 1). Differs from normal lists indexing the array from 0
print('SOURCE:')
print('{!r}'.format(linecache_data.lorem.split('\n')[4]))
print()
print('CACHE:')
print('{!r}'.format(linecache.getline(filename, 5)))
linecache_data.cleanup(filename)
pass
#! /usr/bin/env/python # -*- coding:utf-8 -*- import linecache from linecache_data import make_tempfile,cleanup,lorem filename = make_tempfile() #Blank lines include the newline print 'BLANK :%r' % linecache.getline(filename,8) cleanup(filename)
#! /usr/bin/env/python # -*- coding:utf-8 -*- import linecache from linecache_data import make_tempfile, cleanup, lorem filename = make_tempfile() #The cache always returns a string, #and uses an empty string to indicate a line which does not exist not_there = linecache.getline(filename, 500) print 'NOT THERE:%r includes %d characters' % (not_there, len(not_there))
def linecache_empty_line():
fn = linecache_data.make_tempfile()
# Blank lines include the newline
print('BLANK : {!r}'.format(linecache.getline(fn, 8)))
linecache_data.cleanup(fn)