How to use multiple versions of a python module on single machine -

-

on single machine, how can/should 2 versions of single python module used

(a) simultaneously on same machine,

(b) under single user, and

(c) without installing external programs (cant reliably install external stuff on windows work computer, sadly),

(d) having same name (to allow no pains when upgrading ($ git pull newversion) )

a production version of code project running constantly. on same machine, test/development version of code running periodically. how can both use own specific version of given module?

version a:

#!/usr/bin/python34 #c:\\myproject\\testversion\\bin\\myprogram.py import mymodule  ## version in c:\\myproject\\testversion\\lib\\python mymodule.do_stuff() # do_stuff version

version b:

#!/usr/bin/python34 #c:\\myproject\\productionversion\\bin\\myprogram.py import mymodule ## version in c:\\myproject\\productionversion\\lib\\python mymodule.do_stuff() ## do_stuff version b

strictly using pythonpath environment variable pick same mymodule both versions, if understanding correct.

after reading this question different python modules, , the python docs modules, feel organizing package rather module may appropriate, can't quite tell best practice that.

also, since thought standard (best?) procedure many projects such deb packages etc. have scripts in different folder modules (e.g. bin vs. lib), seems import keyword looking in same directory not sufficient above case.


Comments

Post a Comment

Popular posts from this blog

java - Custom OutputStreamAppender not run: LOGBACK: No context given for <MYAPPENDER> -

-
i wish write custom appender on basis of outputstreamappender . wrote following class package tests; import java.io.ioexception; import java.io.outputstream; import ch.qos.logback.core.outputstreamappender; public class myappender<e> extends outputstreamappender<e> { public myappender() { system.out.println("myappender created"); setoutputstream(new outputstream() { @override public void write(int b) throws ioexception { throw new unsupportedoperationexception(); } }); } } then wrote following runner: package tests; import org.slf4j.loggerfactory; import ch.qos.logback.classic.logger; public class runner { private static final logger log = (logger) loggerfactory.getlogger(runner.class); public static void main(string[] args) { //log.addappender(new myappender<iloggingevent>()); log.info("hello world"); } } finall...
Read more

java - UML - How would you draw a try catch in a sequence diagram? -

-
Image
is there standard way of drawing try catch sequence diagrams? i've made attempt based on this feel end result doesn't feel right. code diagram based around: public static void save () { try { filehandle filehandle = gdx.files.external(file); filehandle.writestring(boolean.tostring(constantshandler.soundenabled)+"\n", false); (int = 0; < 5; i++) { filehandle.writestring(integer.tostring(constantshandler.highscores[i])+"\n", true); } } catch (throwable e) { } } my attempt note: know still need add loop. that's ok. fragments meant show conditional control flow in sequence diagram. superstructures puts limitations on use of fragments (see pp. 467 of ss2.1.1). should use critical region try part above. , option catch . however, keep telling can take quite freedom in using uml. it's language , such changes in life time. long reader ge...
Read more

c++ - No viable overloaded operator for references a map -

-
i trying use map can make tag names reference number. when try , use it, in code error (6 in total every time reference map): src/main.cpp:25:45: error: no viable overloaded operator[] type 'std::map<std::string, std::string>' const char* idcs = node.child_value(tagmap[3]); this code: #include "pugi/pugixml.hpp" #include <iostream> #include <string> #include <map> int main() { pugi::xml_document doca, docb; std::map<std::string, pugi::xml_node> mapa, mapb; std::map<std::string, std::string> tagmap {{"1", "data"}, {"2", "entry"}, {"3", "id"}, {"4", "content"}}; if (!doca.load_file("a.xml") || !docb.load_file("b.xml")) { std::cout << "can't find input files"; return 1; } (auto& node: doca.child(tagmap[1]).children(tagmap[2])) { co...
Read more