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hasNext in Python iterators?
...course, not difficult to write an adaptor that stores the result of next() and provides has_next() and move_next().
– avakar
Dec 24 '12 at 21:10
6
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What does the number in parentheses shown after Unix command names in manpages mean?
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It's the section that the man page for the command is assigned to.
These are split as
General commands
System calls
C library functions
Special files (usually devices, those found in /dev) and drivers
File formats and conventions
Games and screensavers
Miscellanea
Sys...
How do you sign a Certificate Signing Request with your Certification Authority?
...he ca module
openssl ca ...
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You are missing the prelude to those commands.
This is a two-step process. First you set up your CA, and then you sign an end entity certificate (a.k.a server or user). Both of the two commands elide the two steps into one. And both assume you have a an OpenSSL con...
Re-doing a reverted merge in Git
...owever, the time has come to merge 28s into develop , but git-merge command sees the original merge, and happily announces that all is well and branches have been already merged. What do I do now? Create a 'Revert "Revert "28s -> develop"" ' commit? Doesn't seem to be a good way to do it, but I c...
How to delete/create databases in Neo4j?
...raph database Neo4j like in MySQL? Or, at least, how to delete all nodes and relationships of an existing graph to get a clean setup for tests, e.g., using shell commands similar to rmrel or rm ?
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Align two inline-blocks left and right on same line
How can I align two inline-blocks so that one is left and the other is right on the same line? Why is this so hard? Is there something like LaTeX's \hfill that can consume the space between them to achieve this?
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
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Also, the use of sys.setdefaultencoding() has always been discouraged, and it has become a no-op in py3k. The encoding of py3k is hard-wired to "utf-8" and changing it raises an error.
I suggest some pointers for reading:
http://blog.ianbicking.org/illusive-setdefaultencoding.html
http://nedb...
How do I implement basic “Long Polling”?
...n find lots of information on how Long Polling works (For example, this , and this ), but no simple examples of how to implement this in code.
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How to close IPython Notebook properly?
... notebook as a single-user application, where the user is free to stop it, and as a multi-user server, where only an admin should be able to stop it. We haven't quite worked out how to handle the differences yet.
(For future readers, this is the situation with 0.12 released and 0.13 in development....
Why / when would it be appropriate to override ToString?
I'm studying C# and I wonder what the point and benefit of overriding ToString might be, as shown in the example below.
1...