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Tomcat: How to find out running tomcat version
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One Solaris 10 server, I get an error "Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file" when I ran the command. On RHEL 7.2 I got the correct output.
– sv.
Sep 6 '17...
urlencode vs rawurlencode?
If I want to create a URL using a variable I have two choices to encode the string. urlencode() and rawurlencode() .
11 ...
Regex Match all characters between two strings
... match.find() {
capturedText = match.group(1)
error(capturedText)
}
}
}
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Checking network connection
...tp://216.58.192.142', timeout=1)
return True
except urllib2.URLError as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. Change http://216.58.192.142 to whatever site can be expected to respond quickly.
This fixed IP will not map to goog...
hexadecimal string to byte array in python
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Note that bytes.fromhex throws an error when the input string has an odd number of characters: bytes.fromhex("aab") → ValueError: non-hexadecimal number found in fromhex() arg at position 3.
– Константин Ван
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PostgreSQL Crosstab Query
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This does not work for me, for postgresql. I get the error ERROR: 42803: aggregate function calls may not be nested
– Audrey
Nov 12 '14 at 12:05
1
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How to print a number with commas as thousands separators in JavaScript
...;
const pass = result === expect;
console.log(`${pass ? "✓" : "ERROR ====>"} ${x} => ${result}`);
return pass;
}
let failures = 0;
failures += !test(0, "0");
failures += !test(100, "100");
failures += !test(1000, "1,000");
failures += !test(10000, "1...
Django migration strategy for renaming a model and relationship fields
...ions.RenameField('YetAnotherModel', 'foo', 'bar')
]
You may get some errors if you don't update the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So tr...
Compile, Build or Archive problems with Xcode 4 (and dependencies)
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I had a similar situation, but the unwanted error displayed due to incorrectly referencing a unrelated property which was in the same class (basically I forgot to use self.) - strange one.
– JARC
Jan 5 '13 at 0:18
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java.net.ConnectException: localhost/127.0.0.1:8080 - Connection refused
...e resources to the application from my machine. But i am getting the above error.
10 Answers
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