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How can I read large text files in Python, line by line, without loading it into memory?
...n infile" will load my 5GB of lines in to the memory? and, How can I read from tail?
– Bruno Rocha - rochacbruno
Jun 25 '11 at 2:31
70
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Explanation of the UML arrows
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Here's some explanations from the Visual Studio 2015 docs:
UML Class Diagrams: Reference: https://msdn.microsoft.com/library/dd409437%28VS.140%29.aspx
5: Association: A relationship between the members of two classifiers.
5a: Aggregation: An associ...
Best way to create custom config options for my Rails app?
...s
production:
<<: *defaults
This configuration file gets loaded from a custom initializer in config/initializers:
# Rails 2
APP_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/config.yml")[RAILS_ENV]
# Rails 3+
APP_CONFIG = YAML.load_file(Rails.root.join('config/config.yml'))[Rails.env]
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Is there an alternative to bastard injection? (AKA poor man's injection via default constructor)
..." library
BTW, the terminology used here is based on the pattern language from my book.
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Add leading zeroes/0's to existing Excel values to certain length
...uestions and quality answers on SO regarding how to prevent leading zeroes from getting stripped when importing to or exporting from Excel. However, I already have a spreadsheet that has values in it that were truncated as numbers when, in fact, they should have been handled as strings. I need to ...
Archive the artifacts in Jenkins
...688 No, I'm referring to per-project target folders. If you want artifacts from several jobs into a single shared folder, you will have to publish the artifacts using for example one of the "Publish over $PROTOCOL" plugins.
– Anders Lindahl
Mar 8 '18 at 21:33
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REST HTTP status codes for failed validation or invalid duplicate
...The only other alternative is 422 Unprocessable Entity. It actually comes from WebDav but it is perfectly valid to reuse any status code that has been registered with IANA.
– Darrel Miller
Jul 20 '10 at 19:38
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Why doesn't Java Map extend Collection?
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From the Java Collections API Design FAQ:
Why doesn't Map extend Collection?
This was by design. We feel that
mappings are not collections and
collections are not mappings. Thus, it
makes little sense for Map t...
Dealing with “java.lang.OutOfMemoryError: PermGen space” error
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On tomcat 6.0.29 startup, from my catalina.out logfile: "Please use CMSClassUnloadingEnabled in place of CMSPermGenSweepingEnabled in the future"
– knb
Jul 27 '11 at 11:59
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What does “rc” mean in dot files
...e Candidate.
Edit: No, I take it back officially... "run commands"
[Unix: from runcom files on the CTSS system 1962-63, via the startup script /etc/rc]
Script file containing startup instructions for an application program (or an entire operating system), usually a text file containing commands of ...