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eοΏ½ dS )z?Utilities needed to emulate Python's interactive interpreter.
οΏ½ N)οΏ½CommandCompilerοΏ½compile_commandοΏ½InteractiveInterpreterοΏ½InteractiveConsoleοΏ½interactr c @ sF e Zd ZdZdddοΏ½ZdddοΏ½Zd d
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dοΏ½ ZddοΏ½ Z dS )r zοΏ½Base class for InteractiveConsole.
This class deals with parsing and interpreter state (the user's
namespace); it doesn't deal with input buffering or prompting or
input file naming (the filename is always passed in explicitly).
Nc C s$ |dkrdddοΏ½}|| _ tοΏ½ | _dS )a Constructor.
The optional 'locals' argument specifies the dictionary in
which code will be executed; it defaults to a newly created
dictionary with key "__name__" set to "__console__" and key
"__doc__" set to None.
NZ __console__)οΏ½__name__οΏ½__doc__)οΏ½localsr οΏ½compile)οΏ½selfr οΏ½ r οΏ½ /usr/lib64/python3.6/code.pyοΏ½__init__ s
z InteractiveInterpreter.__init__οΏ½<input>οΏ½singlec
C sR y| j |||οΏ½}W n$ tttfk
r6 | j|οΏ½ dS X |dkrDdS | j|οΏ½ dS )aοΏ½ Compile and run some source in the interpreter.
Arguments are as for compile_command().
One several things can happen:
1) The input is incorrect; compile_command() raised an
exception (SyntaxError or OverflowError). A syntax traceback
will be printed by calling the showsyntaxerror() method.
2) The input is incomplete, and more input is required;
compile_command() returned None. Nothing happens.
3) The input is complete; compile_command() returned a code
object. The code is executed by calling self.runcode() (which
also handles run-time exceptions, except for SystemExit).
The return value is True in case 2, False in the other cases (unless
an exception is raised). The return value can be used to
decide whether to use sys.ps1 or sys.ps2 to prompt the next
line.
FNT)r
οΏ½
OverflowErrorοΏ½ SyntaxErrorοΏ½
ValueErrorοΏ½showsyntaxerrorοΏ½runcode)r οΏ½sourceοΏ½filenameZsymbolοΏ½coder r r
οΏ½ runsource' s
z InteractiveInterpreter.runsourcec C s> yt || jοΏ½ W n( tk
r& οΏ½ Y n | jοΏ½ Y nX dS )aοΏ½ Execute a code object.
When an exception occurs, self.showtraceback() is called to
display a traceback. All exceptions are caught except
SystemExit, which is reraised.
A note about KeyboardInterrupt: this exception may occur
elsewhere in this code, and may not always be caught. The
caller should be prepared to deal with it.
N)οΏ½execr οΏ½
SystemExitοΏ½
showtraceback)r r r r r
r N s z InteractiveInterpreter.runcodec C sοΏ½ t jοΏ½ \}}}|t _|t _|t _|rp|tkrpy|j\}\}}}} W n tk
rV Y nX t||||| fοΏ½}|t _t jt j krοΏ½t
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| j dj
|
οΏ½οΏ½ nt j|||οΏ½ dS )ap Display the syntax error that just occurred.
This doesn't display a stack trace because there isn't one.
If a filename is given, it is stuffed in the exception instead
of what was there before (because Python's parser always uses
"<string>" when reading from a string).
The output is written by self.write(), below.
οΏ½ N)οΏ½sysοΏ½exc_infoοΏ½ last_typeοΏ½
last_valueοΏ½last_tracebackr οΏ½argsr οΏ½
excepthookοΏ½__excepthook__οΏ½ tracebackοΏ½format_exception_onlyοΏ½writeοΏ½join) r r οΏ½typeοΏ½valueοΏ½tbοΏ½msgZdummy_filenameοΏ½linenoοΏ½offsetοΏ½lineοΏ½linesr r r
r a s z&InteractiveInterpreter.showsyntaxerrorc C s| t jοΏ½ \t _t _}}|t _zPtj|d |d |jοΏ½}t jt j krT| j
dj |οΏ½οΏ½ nt j|d |d |οΏ½ W dd }}X dS )zοΏ½Display the exception that just occurred.
We remove the first stack item because it is our own code.
The output is written by self.write(), below.
r οΏ½ r N) r r r r! r" r& οΏ½format_exceptionοΏ½tb_nextr$ r% r( r) )r Zlast_tbZeir1 r r r
r οΏ½ s z$InteractiveInterpreter.showtracebackc C s t jj|οΏ½ dS )zοΏ½Write a string.
The base implementation writes to sys.stderr; a subclass may
replace this with a different implementation.
N)r οΏ½stderrr( )r οΏ½datar r r
r( οΏ½ s z InteractiveInterpreter.write)N)r r )N)
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#c @ s> e Zd ZdZdddοΏ½ZddοΏ½ Zddd οΏ½Zd
d οΏ½ Zdd
dοΏ½ZdS )r zοΏ½Closely emulate the behavior of the interactive Python interpreter.
This class builds on InteractiveInterpreter and adds prompting
using the familiar sys.ps1 and sys.ps2, and input buffering.
NοΏ½ <console>c C s t j| |οΏ½ || _| jοΏ½ dS )zοΏ½Constructor.
The optional locals argument will be passed to the
InteractiveInterpreter base class.
The optional filename argument should specify the (file)name
of the input stream; it will show up in tracebacks.
N)r r r οΏ½ resetbuffer)r r r r r r
r οΏ½ s
zInteractiveConsole.__init__c C s
g | _ dS )zReset the input buffer.N)οΏ½buffer)r r r r
r: οΏ½ s z InteractiveConsole.resetbufferc ! C sP y
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rJ dt _Y nX d}|dkrx| jdt jt j|| jjf οΏ½ n|rοΏ½| jdt |οΏ½ οΏ½ d}xοΏ½yP|rοΏ½t j}nt j}y| j
|οΏ½}W n t k
rοΏ½ | jdοΏ½ P Y n X | j |οΏ½}W qοΏ½ t
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οΏ½r | jd οΏ½ | jοΏ½ d}Y qοΏ½X qοΏ½W |dkοΏ½r4| jd
| jj οΏ½ n|d kοΏ½rL| jd| οΏ½ dS ) aοΏ½ Closely emulate the interactive Python console.
The optional banner argument specifies the banner to print
before the first interaction; by default it prints a banner
similar to the one printed by the real Python interpreter,
followed by the current class name in parentheses (so as not
to confuse this with the real interpreter -- since it's so
close!).
The optional exitmsg argument specifies the exit message
printed when exiting. Pass the empty string to suppress
printing an exit message. If exitmsg is not given or None,
a default message is printed.
z>>> z... zFType "help", "copyright", "credits" or "license" for more information.NzPython %s on %s
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r )r Zps1οΏ½AttributeErrorZps2r( οΏ½versionοΏ½platformοΏ½ __class__r οΏ½strοΏ½ raw_inputοΏ½EOFErrorοΏ½pushοΏ½KeyboardInterruptr: )r οΏ½bannerοΏ½exitmsgZcprtοΏ½moreοΏ½promptr0 r r r
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zInteractiveConsole.interactc C s6 | j j|οΏ½ dj| j οΏ½}| j|| jοΏ½}|s2| jοΏ½ |S )a Push a line to the interpreter.
The line should not have a trailing newline; it may have
internal newlines. The line is appended to a buffer and the
interpreter's runsource() method is called with the
concatenated contents of the buffer as source. If this
indicates that the command was executed or invalid, the buffer
is reset; otherwise, the command is incomplete, and the buffer
is left as it was after the line was appended. The return
value is 1 if more input is required, 0 if the line was dealt
with in some way (this is the same as runsource()).
r< )r; οΏ½appendr) r r r: )r r0 r rH r r r
rD οΏ½ s zInteractiveConsole.pushr c C s t |οΏ½S )aD Write a prompt and read a line.
The returned line does not include the trailing newline.
When the user enters the EOF key sequence, EOFError is raised.
The base implementation uses the built-in function
input(); a subclass may replace this with a different
implementation.
)οΏ½input)r rI r r r
rB s z InteractiveConsole.raw_input)Nr9 )NN)r ) r r7 r8 r r r: r rD rB r r r r
r οΏ½ s
6c C sJ t |οΏ½}|dk r||_n"y ddl}W n tk
r8 Y nX |j| |οΏ½ dS )a& Closely emulate the interactive Python interpreter.
This is a backwards compatible interface to the InteractiveConsole
class. When readfunc is not specified, it attempts to import the
readline module to enable GNU readline if it is available.
Arguments (all optional, all default to None):
banner -- passed to InteractiveConsole.interact()
readfunc -- if not None, replaces InteractiveConsole.raw_input()
local -- passed to InteractiveInterpreter.__init__()
exitmsg -- passed to InteractiveConsole.interact()
Nr )r rB οΏ½readlineοΏ½ ImportErrorr )rF ZreadfuncZlocalrG ZconsolerL r r r
r s οΏ½__main__z-qοΏ½
store_truez*don't print version and copyright messages)οΏ½actionοΏ½helpr )NNNN)r r r& οΏ½argparseZcodeopr r οΏ½__all__r r r r οΏ½ArgumentParserοΏ½parserοΏ½ add_argumentοΏ½
parse_argsr# οΏ½qοΏ½flagsοΏ½quietrF r r r r
οΏ½<module> s& t