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How do I detect the Python version at runtime? [duplicate]
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Sure, take a look at sys.version and sys.version_info.
For example, to check that you are running Python 3.x, use
import sys
if sys.version_info[0] < 3:
raise Exception("Must be using Python 3")
Here, sys.version_info[0] is the major version number. sys.version_i...
List All Redis Databases
... following command to list the databases for which some keys are defined:
INFO keyspace
# Keyspace
db0:keys=10,expires=0
db1:keys=1,expires=0
db3:keys=1,expires=0
Please note that you are supposed to use the "redis-cli" client to run these commands, not telnet. If you want to use telnet, then you...
Measure elapsed time in Swift
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Use clock, ProcessInfo.systemUptime, or DispatchTime for simple start-up time.
There are, as far as I know, at least ten ways to measure elapsed time:
Monotonic Clock based:
ProcessInfo.systemUptime.
mach_absolute_time with mach_timebase...
how to check redis instance version?
... server needed to be restarted manually to launch the new version, whereas INFO correctly reported the old version.
– X-Cubed
Apr 13 '17 at 3:08
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Is there a “do … while” loop in Ruby?
... when linking to an external site, I always make sure to copy the relevant info into my answer here.
– davr
Sep 9 '10 at 0:03
10
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Setting log level of message at runtime in slf4j
...ready implicitly defined by the methods in org.slf4j.Logger: debug, error, info, trace, warn.
– Edward Dale
Apr 12 '10 at 12:45
1
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What is the correct way to make a custom .NET Exception serializable?
... protected SerializableExceptionWithoutCustomProperties(SerializationInfo info, StreamingContext context)
: base(info, context)
{
}
}
}
Full implementation, with custom properties
Complete implementation of a custom serializable exception (MySerializableExce...
How to print register values in GDB?
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info registers shows all the registers; info registers eax shows just the register eax. The command can be abbreviated as i r
share
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log4j logging hierarchy order
...cial documentation is also vague on this. The output method such as error, info, debug, etc. of the logger assigns a priority/severity level to the logging message. If the logging really takes effect (the message will be visible) depends on the effective logging level of the logger being used.
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How do I log a Python error with debug information?
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The exception method simply calls error(message, exc_info=1). As soon as you pass exc_info to any of the logging methods from an exception context, you will get a traceback.
– Helmut Grohne
Jun 25 '13 at 18:46
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