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  2. Module:If not given or empty - Wikipedia

    en.wikipedia.org/wiki/Module:If_not_given_or_empty

    Text before and after is not added because when does not contain NG (for not given). {{Infobox some thing|image=}} final output is before EMPTY after. Text before and after is added because when contains EM (for empty). {{Infobox some thing|image=Green pog.svg}} final output is the equivalent of [[File:Green pog.svg|30px]].

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The server successfully processed the request, asks that the requester reset its document view, and is not returning any content. 206 Partial Content The server is delivering only part of the resource (byte serving) due to a range header sent by the client. The range header is used by HTTP clients to enable resuming of interrupted downloads, or ...

  4. Module:If not given or empty/doc - Wikipedia

    en.wikipedia.org/wiki/Module:If_not_given_or...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  5. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})

  6. HTTP 502 - Wikipedia

    en.wikipedia.org/wiki/HTTP_502

    Failure can occur due to maintenance, hardware issues, software problems, or other technical issues. Network issues: Unstable network connections, packet loss, or other network problems can cause communication disruptions between the proxy server and the upstream server.

  7. Exit status - Wikipedia

    en.wikipedia.org/wiki/Exit_status

    The return value from main is passed to the exit function, which for values zero, EXIT_SUCCESS or EXIT_FAILURE may translate it to "an implementation defined form" of successful termination or unsuccessful termination. [citation needed] Apart from zero and the macros EXIT_SUCCESS and EXIT_FAILURE, the C standard does not define the meaning of ...

  8. Failure transparency - Wikipedia

    en.wikipedia.org/wiki/Failure_transparency

    In a distributed system, failure transparency refers to the extent to which errors and subsequent recoveries of hosts and services within the system are invisible to users and applications. For example, if a server fails, but users are automatically redirected to another server and never notice the failure, the system is said to exhibit high ...

  9. Exception handling syntax - Wikipedia

    en.wikipedia.org/wiki/Exception_handling_syntax

    C does not provide direct support to exception handling: it is the programmer's responsibility to prevent errors in the first place and test return values from the functions.