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Re: [Question #295951]: yade on kubuntu 16.04

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: James X <question295951@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 18 Jul 2016 16:13:32 -0000
Reply-to: question295951@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx
Question #295951 on Yade changed:
https://answers.launchpad.net/yade/+question/295951

    Status: Needs information => Answered

James X proposed the following answer:
OK, so my prior message was just an example of me not understanding what
yade was supposed to do (I wasn't aware that you could/should run
commands in yade if you were running from a script file). I just assumed
that script files were designed to be run and then exited/cancelled out
of when they finished running.

for example, if I run "hourglass.py", I get the same error as originally
described. Strangely enough, there seem to be seem terminal commands
that work just fine. For example, when I type in "O.run()" and
"O.bodies[0]", the simulation runs or I am told what O.bodies[0] is.

Below is the print out of what happens when I run yadedaily
"hourglass.py", then first attempt to add "10+5", then attempt to run
the simulation by typing "O.run()", then pausing it by typing
"O.pause()", then multiplying "10 * int(5.5)", then finding what is
returned when I type in "O.bodies[1]", and finally crashing the program
by running "len(O.bodies)".  I would try using the inspector, but I'm
still very new to Yade and quite honestly have no idea what to do with
it.


~/trunk-master/examples/hourglass$ yadedaily hourglass.py
Welcome to Yade 2016.06a-2-86aa164~xenial 
TCP python prompt on localhost:9000, auth cookie `eukysd'
XMLRPC info provider on http://localhost:21000
Running script hourglass.py
[[ ^L clears screen, ^U kills line. F12 controller, F11 3d view (use h-key for showing help), F10 both, F9 generator, F8 plot. ]]
[0;34mYade [[1;34m1[0;34m]: [0m10+5
[0;34mYade [[1;34m1[0;34m]: [0m ->  [1]: 15
O                 2[0;34m]: [0mO.run()
[0;34mYade [[1;34m2[0;34m]: [0mO.pause()
[0;34mYade [[1;34m4[0;34m]: [0m10*int(5.5)
[0;34mYade [[1;34m4[0;34m]: [0m ->  [4]: 50

[0;34mYade [[1;34m5[0;34m]: [0mO.bodies[1]
[0;34mYade [[1;34m5[0;34m]: [0m ->  [5]: <Body instance at 0x3084be0>

[0;34mYade [[1;34m6[0;34m]: [0mlen(O.bodies)
[0;34mYade [[1;34m6[0;34m]: [0m ->  [6]: 3500
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
/usr/bin/yadedaily in <module>()
    289         import yade.qt
    290         qapp=QApplication(sys.argv)
--> 291         userSession(gui=gui,qapp=qapp)
    292 
    293 if __name__ == "__main__":

/usr/bin/yadedaily in userSession(gui, qapp)
    240                 InteractiveShellEmbed.banner1=banner+'\n'
    241                 ipshell=InteractiveShellEmbed()
--> 242                 ipshell()
    243 
    244 ## run userSession in a way corresponding to the features we use:

/usr/lib/python2.7/dist-packages/IPython/terminal/embed.pyc in __call__(self, header, local_ns, module, dummy, stack_depth, global_ns, compile_flags)
    151         # our call and get the original caller's namespaces.
    152         self.mainloop(local_ns, module, stack_depth=stack_depth,
--> 153                       global_ns=global_ns, compile_flags=compile_flags)
    154 
    155         self.banner2 = self.old_banner2

/usr/lib/python2.7/dist-packages/IPython/terminal/embed.pyc in mainloop(self, local_ns, module, stack_depth, display_banner, global_ns, compile_flags)
    243 
    244         with self.builtin_trap, self.display_trap:
--> 245             self.interact(display_banner=display_banner)
    246 
    247         # now, purge out the local namespace of IPython's hidden variables.

/usr/lib/python2.7/dist-packages/IPython/terminal/interactiveshell.pyc in interact(self, display_banner)
    567                     self.run_cell(source_raw, store_history=True)
    568                     hlen_b4_cell = \
--> 569                         self._replace_rlhist_multiline(source_raw, hlen_b4_cell)
    570 
    571         # Turn off the exit flag, so the mainloop can be restarted if desired

/usr/lib/python2.7/dist-packages/IPython/terminal/interactiveshell.pyc in _replace_rlhist_multiline(self, source_raw, hlen_before_cell)
    472 
    473         for i in range(hlen - hlen_before_cell):
--> 474             self.readline.remove_history_item(hlen - i - 1)
    475         stdin_encoding = get_stream_enc(sys.stdin, 'utf-8')
    476         self.readline.add_history(py3compat.unicode_to_str(source_raw.rstrip(),

ValueError: No history item at position 2600

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