Come posso scaricare un file in una directory specifica?

Question

Ho recentemente tentato di effettuare un programma in Python che scarica i file in una directory specifica.Sto usando Ubuntu e finora ho questo

import os
import getpass
import urllib2

y = getpass.getuser()

if not os.access('/home/' + y + '/newdir/', os.F_OK):
    print("Making New Directory")
    os.mkdir('/home/' + y + '/newdir/')

url = ("http://example.com/Examplefile.ex")
file_name = url.split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)

file_size_dl = 0
block_sz = 8192
while True:
    buffer = u.read(block_sz)
    if not buffer:
    break

    file_size_dl += len(buffer)
    f.write(buffer)
    status = r"%10d  [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
    status = status + chr(8)*(len(status)+1)
    print status,

f.close()

.

Attualmente scarica il file nella stessa directory come posso modificare la directory download IT su?

fissato il nuovo codice:

import os
import getpass
import urllib2

y = getpass.getuser()

if not os.access('/home/' + y + '/newdir/', os.F_OK):
    print("Making New Directory")
    os.mkdir('/home/' + y + '/newdir/')

os.chdir('/home/'+y+'/newdir/')

url = ("http://example.com/Examplefile.ex")
file_name = url.split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)

file_size_dl = 0
block_sz = 8192
while True:
    buffer = u.read(block_sz)
    if not buffer:
    break

    file_size_dl += len(buffer)
    f.write(buffer)
    status = r"%10d  [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
    status = status + chr(8)*(len(status)+1)
    print status,

f.close()

.

Answer 1

Scusate ragazzi che sono stato stupido ma per rispondere alla domanda che ho aggiunto

os.chdir('/home/' + y + '/newdir/')

.

Subito dopo la prima volta l'istruzione EX:

import os
import getpass
import urllib2

y = getpass.getuser()

if not os.access('/home/' + y + '/newdir/', os.F_OK):
    print("Making New Directory")
    os.mkdir('/home/' + y + '/newdir/')

os.chdir('/home/'+y+'/newdir/')

url = ("http://example.com/Examplefile.ex")
file_name = url.split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)

file_size_dl = 0
block_sz = 8192
while True:
    buffer = u.read(block_sz)
    if not buffer:
    break

    file_size_dl += len(buffer)
    f.write(buffer)
    status = r"%10d  [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
    status = status + chr(8)*(len(status)+1)
    print status,

f.close()

.

Answer 2

Passa la directory a open() nel nome del file.

Answer 3

Usa os.path.join per aggiungere la directory a file_name:

    from os.path import join

    directory = join('/home/', y, '/newdir/')
    # You can now use directory everywhere you used to build the directory name

    # and then, later in the script:
    file_name = url.split('/')[-1]
    file_name = join(directory, file_name)

.