如何限制对 write 函数的curl 调用次数？

发布于 2024-10-12 11:33:59 字数 158 浏览 7 评论 0原文

我试图限制调用此 WRITEFUNCTION 的次数。我有什么办法可以做到这一点吗？

定义 write 函数：

conn.setopt(pycurl.WRITEFUNCTION, on_receive)

感谢您的帮助！

原文

I'm trying to limit the number of times this WRITEFUNCTION is called. Is there any way I can do that?

defining the writefunction:

conn.setopt(pycurl.WRITEFUNCTION, on_receive)

Thanks for the help!

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梦在深巷 2024-10-19 11:33:59

这是一个应该可以工作的简单版本。构建 PycURL 来测试并找到更好的方法。

import pycurl, json

STREAM_URL = "http://chirpstream.twitter.com/2b/user.json"

USER = "segphault"
PASS = "XXXXXXXXX"

class LimitError(Exception): pass

counter = 0
limit = 10
def on_receive(data):
    global counter
    if counter < 10:
        print data
        counter += 1
    else:
        raise LimitError    
conn = pycurl.Curl()
conn.setopt(pycurl.USERPWD, "%s:%s" % (USER, PASS))
conn.setopt(pycurl.URL, STREAM_URL)
conn.setopt(pycurl.WRITEFUNCTION, on_receive)

try:
    conn.perform()
    print "Exited Normally"
except LimitError:
    print "Reached limit, exiting"
except pycurl.error:
    if counter == limit:
        print "pycurl expected error, nothing to worry about"
    else:
        raise
finally:
    conn.close()

print "All done"

Here's a dirty simple version that should work. Building PycURL to test and find a better way.

import pycurl, json

STREAM_URL = "http://chirpstream.twitter.com/2b/user.json"

USER = "segphault"
PASS = "XXXXXXXXX"

class LimitError(Exception): pass

counter = 0
limit = 10
def on_receive(data):
    global counter
    if counter < 10:
        print data
        counter += 1
    else:
        raise LimitError    
conn = pycurl.Curl()
conn.setopt(pycurl.USERPWD, "%s:%s" % (USER, PASS))
conn.setopt(pycurl.URL, STREAM_URL)
conn.setopt(pycurl.WRITEFUNCTION, on_receive)

try:
    conn.perform()
    print "Exited Normally"
except LimitError:
    print "Reached limit, exiting"
except pycurl.error:
    if counter == limit:
        print "pycurl expected error, nothing to worry about"
    else:
        raise
finally:
    conn.close()

print "All done"

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