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d „ Z d „ Z d d d „ Z d d „ Z d d d „ Z d d d d „ Z d d d „ Z d d d! „ Z d" „ Z d S(# s@ Extract, format and print information about Python stack traces.Nt
extract_stackt
extract_tbt format_exceptiont format_exception_onlyt format_listt format_stackt format_tbt print_exct
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print_lastt print_stackt print_tbt tb_linenot s
c C s | i | | ƒ d S( N( t filet writet strt
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t i } n xV | D]N \ } } } } t | d | | | f ƒ | o t | d | i
ƒ ƒ q! q! Wd S( sy Print the list of tuples as returned by extract_tb() or
extract_stack() as a formatted stack trace to the given file.s File "%s", line %d, in %ss %sN( R t Nonet syst stderrt extracted_listt filenamet linenot namet lineR t strip( R R R R R R ( ( R t
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W| S( s² Format a list of traceback entry tuples for printing.
Given a list of tuples as returned by extract_tb() or
extract_stack(), return a list of strings ready for printing.
Each string in the resulting list corresponds to the item with the
same index in the argument list. Each string ends in a newline;
the strings may contain internal newlines as well, for those items
whose source text line is not None.
s File "%s", line %d, in %s
s %s
N( t listR R R R R t itemR t append( R R R R R R R ( ( R R s c
C s | d j o
t i } n | d j o! t t d ƒ o
t i } qH n d } xÇ | d j o¹ | d j p
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} | i } | i } t | d | | | f ƒ t i | ƒ t i | | ƒ } | o t | d | i ƒ ƒ n | i } | d } qQ Wd S( s Print up to 'limit' stack trace entries from the traceback 'tb'.
If 'limit' is omitted or None, all entries are printed. If 'file'
is omitted or None, the output goes to sys.stderr; otherwise
'file' should be an open file or file-like object with a write()
method.
t tracebacklimiti s File "%s", line %d, in %ss i N( R R R R t limitt hasattrR" t nt tbt tb_framet fR
R t f_codet cot co_filenameR t co_nameR R t linecachet
checkcachet getlineR R t tb_next(
R& R# R R* R R( R% R R R ( ( R R . s,
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c C s t t | | ƒ ƒ S( s6 A shorthand for 'format_list(extract_stack(f, limit)).N( R R R& R# ( R& R# ( ( R R J s c
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t i } q. n g } d } xÁ | d j o³ | d j p
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} | i } | i } | i } t i | ƒ t i | | ƒ } | o | i ƒ } n d } | i | | | | f ƒ | i } | d } q= W| S( sí Return list of up to limit pre-processed entries from traceback.
This is useful for alternate formatting of stack traces. If
'limit' is omitted or None, all entries are extracted. A
pre-processed stack trace entry is a quadruple (filename, line
number, function name, text) representing the information that is
usually printed for a stack trace. The text is a string with
leading and trailing whitespace stripped; if the source is not
available it is None.
R" i i N( R# R R$ R R" R R% R& R' R( R
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t i } n | o! t | d ƒ t | | | ƒ n t | | ƒ } x" | d D] } t | | d ƒ q\ Wt | | d d ƒ d S( sù Print exception up to 'limit' stack trace entries from 'tb' to 'file'.
This differs from print_tb() in the following ways: (1) if
traceback is not None, it prints a header "Traceback (most recent
call last):"; (2) it prints the exception type and value after the
stack trace; (3) if type is SyntaxError and value has the
appropriate format, it prints the line where the syntax error
occurred with a caret on the next line indicating the approximate
position of the error.
s" Traceback (most recent call last):iÿÿÿÿt R N(
R R R R R& R R R# R t etypet valuet linesR ( R2 R3 R& R# R R4 R ( ( R R n s
c C sD | o d g } | t | | ƒ } n g } | t | | ƒ } | S( sz Format a stack trace and the exception information.
The arguments have the same meaning as the corresponding arguments
to print_exception(). The return value is a list of strings, each
ending in a newline and some containing internal newlines. When
these lines are concatenated and printed, exactly the same text is
printed as does print_exception().
s# Traceback (most recent call last):
N( R& R R R# R R2 R3 ( R2 R3 R& R# R ( ( R R ƒ s c C sØ g } t | ƒ t i j o
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s Format the exception part of a traceback.
The arguments are the exception type and value such as given by
sys.last_type and sys.last_value. The return value is a list of
strings, each ending in a newline. Normally, the list contains a
single string; however, for SyntaxError exceptions, it contains
several lines that (when printed) display detailed information
about where the syntax error occurred. The message indicating
which exception occurred is the always last string in the list.
s
s <string>s File "%s", line %d
i i s %s
s R1 s %s^
s %s: %s
s %s
N( R t typeR2 t typest ClassTypet __name__t stypeR3 R R! R t SyntaxErrort msgR R t offsetR t it lent isspaceR t st ct _some_str( R2 R3 R= R RA R R; R@ R9 R< R R ( ( R R ” sF
$
!c C s- y t | ƒ SWn d t | ƒ i Sn Xd S( Ns <unprintable %s object>( R R3 R5 R8 ( R3 ( ( R RB Å s c C s_ | d j o
t i } n z/ t i ƒ \ } } } t | | | | | ƒ Wd d } } } Xd S( s¾ Shorthand for 'print_exception(sys.exc_type, sys.exc_value, sys.exc_traceback, limit, file)'.
(In fact, it uses sys.exc_info() to retrieve the same information
in a thread-safe way.)N(
R R R R t exc_infoR2 R3 R& R R# ( R# R R3 R2 R& ( ( R R Ì s
c C sK z5 t i ƒ \ } } } d i t | | | | ƒ ƒ SWd d } } } Xd S( s% Like print_exc() but return a string.R N( R RC R2 R3 R& t joinR R# R ( R# R3 R2 R& ( ( R R Ù s c C s= | d j o
t i } n t t i t i t i | | ƒ d S( sn This is a shorthand for 'print_exception(sys.last_type,
sys.last_value, sys.last_traceback, limit, file)'.N( R R R R R t last_typet
last_valuet last_tracebackR# ( R# R ( ( R R
â s
c C sa | d j o: y
t ‚ WqG t j
o t i ƒ d i i } qG Xn t t | | ƒ | ƒ d S( s÷ Print a stack trace from its invocation point.
The optional 'f' argument can be used to specify an alternate
stack frame at which to start. The optional 'limit' and 'file'
arguments have the same meaning as for print_exception().
i N( R( R t ZeroDivisionErrorR RC R' t f_backR R R# R ( R( R# R ( ( R R ë s
c C sZ | d j o: y
t ‚ WqG t j
o t i ƒ d i i } qG Xn t t | | ƒ ƒ S( s5 Shorthand for 'format_list(extract_stack(f, limit))'.i N(
R( R RH R RC R' RI R R R# ( R( R# ( ( R R ù s
c C sJ | d j o: y
t ‚ WqG t j
o t i ƒ d i i } qG Xn | d j o! t t d ƒ o
t i } qu n g } d } x¸ | d j oª | d j p
| | j o | i } | i } | i } | i } t i | ƒ t i | | ƒ } | o | i ƒ } n d } | i | | | | f ƒ | i } | d } q„ W| i ƒ | S( ss Extract the raw traceback from the current stack frame.
The return value has the same format as for extract_tb(). The
optional 'f' and 'limit' arguments have the same meaning as for
print_stack(). Each item in the list is a quadruple (filename,
line number, function name, text), and the entries are in order
from oldest to newest stack frame.
i R" i i N( R( R RH R RC R' RI R# R$ R" R R% t f_linenoR R) R* R+ R R, R R- R. R/ R R R! t reverse( R( R# R* R R R% R R R ( ( R R s6
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c C s | i S( sR Calculate correct line number of traceback given in tb.
Obsolete in 2.3.
N( R& R
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