大约有 15,590 项符合查询结果（耗时：0.0301秒） [XML]
Saving and loading objects and using pickle
... File "C:\Python31\lib\pickle.py", line
1365, in load encoding=encoding,
errors=errors).load() EOFError
After you have read the contents of the file, the file pointer will be at the end of the file - there will be no further data to read. You have to rewind the file so that it will be read from ...
Rails: What's a good way to validate links (URLs)?
...url?(uri)
uri = URI.parse(uri) && uri.host
rescue URI::InvalidURIError
false
end
You can even decide to make it more restrictive. For instance, if you want the URL to be an HTTP/HTTPS URL, then you can make the validation more accurate.
require 'uri'
def valid_url?(url)
uri = URI.par...
Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy
Just started using Xcode 4.5 and I got this error in the console:
33 Answers
33
...
ImportError in importing from sklearn: cannot import name check_build
I am getting the following error while trying to import from sklearn:
13 Answers
13
...
How to get MVC action to return 404
...(maybe because it has been deleted), I want to return a 404 and display an error page.
12 Answers
...
socket.error: [Errno 48] Address already in use
...n port', port
httpd.serve_forever()
except SocketServer.socket.error as exc:
if exc.args[0] != 48:
raise
print 'Port', port, 'already in use'
port += 1
else:
break
If you need to do the same thing for other utilities, it may be more conve...
MySQL > Table doesn't exist. But it does (or it should)
...se that uses InnoDB tables, you will get this crazy 'table does not exist' error mentioned above.
The issue is that you need the ib* files in the root of the MySQL datadir (e.g. ibdata1, ib_logfile0 and ib_logfile1).
When I copied those it worked for me.
...
What is the difference between Trap and Interrupt?
...n the ALU finds this problem. Just like a segmentation fault. Not all math errors cause interrupts (overflow doesn't), though.
– Aaron Digulla
May 22 '12 at 8:13
4
...
Proper way to catch exception from JSON.parse
... {
a = JSON.parse(response);
} catch(e) {
alert(e); // error in the above string (in this case, yes)!
}
}
share
|
improve this answer
|
follow
...
Is there a WebSocket client implemented for Python? [closed]
...thread
import time
def on_message(ws, message):
print message
def on_error(ws, error):
print error
def on_close(ws):
print "### closed ###"
def on_open(ws):
def run(*args):
for i in range(30000):
time.sleep(1)
ws.send("Hello %d" % i)
time.s...