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Starting python debugger automatically on error
...se traceback.print_exc to print the exceptions traceback. Then use sys.exc_info to extract the traceback and finally call pdb.post_mortem with that traceback
import pdb, traceback, sys
def bombs():
a = []
print a[0]
if __name__ == '__main__':
try:
bombs()
except:
e...
Why when a constructor is annotated with @JsonCreator, its arguments must be annotated with @JsonPro
...
jackson-module-parameter-names
This module allows you to get annotation-free constructor arguments when using Java 8. In order to use it you first need to register the module:
ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new ParameterNamesModule());
Then compile your code us...
Print number of keys in Redis
...
You can issue the INFO command, which returns information and statistics about the server. See here for an example output.
As mentioned in the comments by mVChr, you can use info keyspace directly on the redis-cli.
redis> INFO
# Server
redi...
reStructuredText tool support
...o prettify source code. See Using Pygments in reStructuredText documents.
Free Editors
While any plain text editor is suitable to write reStructuredText documents, some editors have better support than others.
Emacs
The Emacs support via rst-mode comes as part of the Docutils package under /docu...
不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ing to be done for `install-exec-am'.
/bin/sh ../mkinstalldirs /usr/local/info
mkdir -p -- /usr/local/info
/usr/bin/install -c -m 644 ./zebra.info /usr/local/info/zebra.info
install-info --info-dir=/usr/local/info /usr/local/info/zebra.info
/bin/sh ../mkinstalldirs /usr/local/man/man1
mkdir ...
Choosing a Java Web Framework now? [closed]
...ion with inheritance, polymorphism and composition. Also, XML-config files free!
– Xavi López
Oct 18 '11 at 13:31
...
Choosing the best concurrency list in Java [closed]
...blyLinkedList written by Doug Lea based on Paul Martin's "A Practical Lock-Free Doubly-Linked List". It does not implement the java.util.List interface, but offers most methods you would use in a List.
According to the javadoc:
A concurrent linked-list implementation of a Deque
(double-ended ...
AsyncProcedures异步过程扩展 · App Inventor 2 中文网
...《服务协议》 关注公众号，精彩不错过！ #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
Is there an interactive way to learn Vim? [closed]
...t worth $25 (especially with just 6 months of access) when there are other free resources that can be used to learn vim.
– nyuszika7h
Mar 31 '15 at 18:39
...
How can I brew link a specific version?
...
The usage info:
Usage: brew switch <formula> <version>
Example:
brew switch mysql 5.5.29
You can find the versions installed on your system with info.
brew info mysql
And to see the available versions to install, y...