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Elixir Cross Referencer

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The following are examples of py_flow.d.

This is a simple script to trace the flow of Python functions.
Here it traces the example program, Code/Python/func_abc.py

# py_flow.d
  C TIME(us)         FILE             -- FUNC
  0 3064371810154    site.py          -> ?
  0 3064371830069    os.py              -> ?
  0 3064371840076    posixpath.py         -> ?
  0 3064371840298    stat.py                -> ?
  0 3064371840319    stat.py                <- ?
  0 3064371840345    posixpath.py         <- ?
  0 3064371840364    os.py                -> _get_exports_list
  0 3064371840510    os.py                <- _get_exports_list
  0 3064371849994    UserDict.py          -> ?
  0 3064371850011    UserDict.py            -> UserDict
  0 3064371850051    UserDict.py            <- UserDict
  0 3064371850067    UserDict.py            -> IterableUserDict
  0 3064371850075    UserDict.py            <- IterableUserDict
  0 3064371850088    UserDict.py            -> DictMixin
  0 3064371850291    UserDict.py            <- DictMixin
  0 3064371850300    UserDict.py          <- ?
  0 3064371850320    os.py                -> _Environ
  0 3064371850330    os.py                <- _Environ
  0 3064371850342    os.py                -> __init__
  0 3064371850353    UserDict.py            -> __init__
  0 3064371850363    UserDict.py            <- __init__
  0 3064371850372    os.py                <- __init__
  0 3064371850381    os.py                -> _exists
  0 3064371851137    <string>               -> ?
  0 3064371851146    <string>               <- ?
  0 3064371851155    os.py                <- _exists
  0 3064371851162    os.py                -> _exists
  0 3064371851186    <string>               -> ?
  0 3064371851195    <string>               <- ?
  0 3064371851213    os.py                <- _exists
  0 3064371851220    os.py                -> _exists
  0 3064371851242    <string>               -> ?
  0 3064371851249    <string>               <- ?
  0 3064371851257    os.py                <- _exists
  0 3064371851266    os.py                -> _exists
  0 3064371851286    <string>               -> ?
  0 3064371851293    <string>               <- ?
  0 3064371851300    os.py                <- _exists
  0 3064371851310    os.py                -> _exists
  0 3064371851330    <string>               -> ?
  0 3064371851337    <string>               <- ?
  0 3064371851344    os.py                <- _exists
  0 3064371851354    os.py                -> _exists
  0 3064371851374    <string>               -> ?
  0 3064371851381    <string>               <- ?
  0 3064371851388    os.py                <- _exists
  0 3064371851395    os.py                -> _exists
  0 3064371851415    <string>               -> ?
  0 3064371851423    <string>               <- ?
  0 3064371851436    os.py                <- _exists
  0 3064371851445    os.py                -> _exists
  0 3064371851465    <string>               -> ?
  0 3064371851473    <string>               <- ?
  0 3064371851485    os.py                <- _exists
  0 3064371851493    os.py                -> _exists
  0 3064371851514    <string>               -> ?
  0 3064371851522    <string>               <- ?
  0 3064371851534    os.py                <- _exists
  0 3064371851785    copy_reg.py          -> ?
  0 3064371851996    types.py               -> ?
  0 3064371852063    types.py                 -> _C
  0 3064371852073    types.py                 <- _C
  0 3064371852108    types.py               <- ?
  0 3064371852129    copy_reg.py            -> pickle
  0 3064371852139    copy_reg.py              -> constructor
  0 3064371852147    copy_reg.py              <- constructor
  0 3064371852155    copy_reg.py            <- pickle
  0 3064371852166    copy_reg.py          <- ?
  0 3064371852179    copy_reg.py          -> pickle
  0 3064371852188    copy_reg.py            -> constructor
  0 3064371852196    copy_reg.py            <- constructor
  0 3064371852204    copy_reg.py          <- pickle
  0 3064371852212    copy_reg.py          -> pickle
  0 3064371852221    copy_reg.py            -> constructor
  0 3064371852229    copy_reg.py            <- constructor
  0 3064371852236    copy_reg.py          <- pickle
  0 3064371852244    os.py                -> _exists
  0 3064371852269    <string>               -> ?
  0 3064371852277    <string>               <- ?
  0 3064371852289    os.py                <- _exists
  0 3064371852297    os.py              <- ?
  0 3064371852330    site.py            -> _Printer
  0 3064371852340    site.py            <- _Printer
  0 3064371852376    site.py            -> _Helper
  0 3064371852384    site.py            <- _Helper
  0 3064371852416    site.py            -> main
  0 3064371852423    site.py              -> abs__file__
  0 3064371852434    posixpath.py           -> abspath
  0 3064371852442    posixpath.py             -> isabs
  0 3064371852452    posixpath.py             <- isabs
  0 3064371852460    posixpath.py             -> normpath
  0 3064371852482    posixpath.py             <- normpath
  0 3064371852490    posixpath.py           <- abspath
  0 3064371852504    posixpath.py           -> abspath
  0 3064371852511    posixpath.py             -> isabs
  0 3064371852520    posixpath.py             <- isabs
  0 3064371852527    posixpath.py             -> normpath
  0 3064371852543    posixpath.py             <- normpath
  0 3064371852552    posixpath.py           <- abspath
  0 3064371852560    posixpath.py           -> abspath
  0 3064371852567    posixpath.py             -> isabs
  0 3064371852576    posixpath.py             <- isabs
  0 3064371852583    posixpath.py             -> normpath
  0 3064371852598    posixpath.py             <- normpath
  0 3064371852607    posixpath.py           <- abspath
  0 3064371852615    posixpath.py           -> abspath
  0 3064371852622    posixpath.py             -> isabs
  0 3064371852631    posixpath.py             <- isabs
  0 3064371852638    posixpath.py             -> normpath
  0 3064371852653    posixpath.py             <- normpath
  0 3064371852661    posixpath.py           <- abspath
  0 3064371852674    posixpath.py           -> abspath
  0 3064371852682    posixpath.py             -> isabs
  0 3064371852690    posixpath.py             <- isabs
  0 3064371852697    posixpath.py             -> normpath
  0 3064371852713    posixpath.py             <- normpath
  0 3064371852721    posixpath.py           <- abspath
  0 3064371852741    posixpath.py           -> abspath
  0 3064371852748    posixpath.py             -> isabs
  0 3064371852757    posixpath.py             <- isabs
  0 3064371852764    posixpath.py             -> normpath
  0 3064371852779    posixpath.py             <- normpath
  0 3064371852787    posixpath.py           <- abspath
  0 3064371852804    posixpath.py           -> abspath
  0 3064371852811    posixpath.py             -> isabs
  0 3064371852819    posixpath.py             <- isabs
  0 3064371852826    posixpath.py             -> normpath
  0 3064371852842    posixpath.py             <- normpath
  0 3064371852850    posixpath.py           <- abspath
  0 3064371852858    posixpath.py           -> abspath
  0 3064371852865    posixpath.py             -> isabs
  0 3064371852874    posixpath.py             <- isabs
  0 3064371852881    posixpath.py             -> normpath
  0 3064371852896    posixpath.py             <- normpath
  0 3064371852904    posixpath.py           <- abspath
  0 3064371852915    site.py              <- abs__file__
  0 3064371852922    site.py              -> removeduppaths
  0 3064371852931    site.py                -> makepath
  0 3064371852940    posixpath.py             -> join
  0 3064371852948    posixpath.py             <- join
  0 3064371852955    posixpath.py             -> abspath
  0 3064371852963    posixpath.py               -> isabs
  0 3064371852972    posixpath.py               <- isabs
  0 3064371852980    posixpath.py               -> normpath
  0 3064371852995    posixpath.py               <- normpath
  0 3064371853002    posixpath.py             <- abspath
  0 3064371853010    posixpath.py             -> normcase
  0 3064371853018    posixpath.py             <- normcase
  0 3064371853025    site.py                <- makepath
  0 3064371853065    site.py                -> makepath
  0 3064371853073    posixpath.py             -> join
  0 3064371853081    posixpath.py             <- join
  0 3064371853088    posixpath.py             -> abspath
  0 3064371853096    posixpath.py               -> isabs
  0 3064371853104    posixpath.py               <- isabs
  0 3064371853111    posixpath.py               -> normpath
  0 3064371853126    posixpath.py               <- normpath
  0 3064371853134    posixpath.py             <- abspath
  0 3064371853142    posixpath.py             -> normcase
  0 3064371853150    posixpath.py             <- normcase
  0 3064371853157    site.py                <- makepath
  0 3064371853165    site.py                -> makepath
  0 3064371853173    posixpath.py             -> join
  0 3064371853181    posixpath.py             <- join
  0 3064371853188    posixpath.py             -> abspath
  0 3064371853195    posixpath.py               -> isabs
  0 3064371853203    posixpath.py               <- isabs
  0 3064371853210    posixpath.py               -> normpath
  0 3064371853226    posixpath.py               <- normpath
  0 3064371853234    posixpath.py             <- abspath
  0 3064371853241    posixpath.py             -> normcase
  0 3064371853249    posixpath.py             <- normcase
  0 3064371853256    site.py                <- makepath
  0 3064371853265    site.py                -> makepath
  0 3064371853272    posixpath.py             -> join
  0 3064371853280    posixpath.py             <- join
  0 3064371853287    posixpath.py             -> abspath
  0 3064371853294    posixpath.py               -> isabs
  0 3064371853303    posixpath.py               <- isabs
  0 3064371853310    posixpath.py               -> normpath
  0 3064371853325    posixpath.py               <- normpath
  0 3064371853333    posixpath.py             <- abspath
  0 3064371853341    posixpath.py             -> normcase
  0 3064371853348    posixpath.py             <- normcase
  0 3064371853356    site.py                <- makepath
  0 3064371853364    site.py                -> makepath
  0 3064371853372    posixpath.py             -> join
  0 3064371853380    posixpath.py             <- join
  0 3064371853387    posixpath.py             -> abspath
  0 3064371853394    posixpath.py               -> isabs
  0 3064371853402    posixpath.py               <- isabs
  0 3064371853409    posixpath.py               -> normpath
  0 3064371853425    posixpath.py               <- normpath
  0 3064371853433    posixpath.py             <- abspath
  0 3064371853440    posixpath.py             -> normcase
  0 3064371853448    posixpath.py             <- normcase
  0 3064371853455    site.py                <- makepath
  0 3064371853466    site.py              <- removeduppaths
  0 3064371853476    posixpath.py         -> basename
  0 3064371853484    posixpath.py           -> split
  0 3064371853498    posixpath.py           <- split
  0 3064371853505    posixpath.py         <- basename
  0 3064371853513    site.py              -> addsitepackages
  0 3064371853524    posixpath.py           -> join
  0 3064371853538    posixpath.py           <- join
  0 3064371853546    posixpath.py           -> join
  0 3064371853557    posixpath.py           <- join
  0 3064371853566    posixpath.py           -> isdir
  0 3064371853597    stat.py                  -> S_ISDIR
  0 3064371853604    stat.py                    -> S_IFMT
  0 3064371853612    stat.py                    <- S_IFMT
  0 3064371853620    stat.py                  <- S_ISDIR
  0 3064371853627    posixpath.py           <- isdir
  0 3064371853636    site.py                -> addsitedir
  0 3064371853643    site.py                  -> makepath
  0 3064371853651    posixpath.py               -> join
  0 3064371853659    posixpath.py               <- join
  0 3064371853666    posixpath.py               -> abspath
  0 3064371853674    posixpath.py                 -> isabs
  0 3064371853683    posixpath.py                 <- isabs
  0 3064371853691    posixpath.py                 -> normpath
  0 3064371853707    posixpath.py                 <- normpath
  0 3064371853715    posixpath.py               <- abspath
  0 3064371853723    posixpath.py               -> normcase
  0 3064371853730    posixpath.py               <- normcase
  0 3064371853738    site.py                  <- makepath
  0 3064371853938    site.py                  -> addpackage
  0 3064371853948    posixpath.py               -> join
  0 3064371853958    posixpath.py               <- join
  0 3064371854087    <string>                   -> ?
  0 3064371854098    site.py                      -> addsitedir
  0 3064371854106    site.py                        -> _init_pathinfo
  0 3064371854115    posixpath.py                     -> isdir
  0 3064371854195    posixpath.py                     <- isdir
  0 3064371854204    posixpath.py                     -> isdir
  0 3064371854224    stat.py                            -> S_ISDIR
  0 3064371854232    stat.py                              -> S_IFMT
  0 3064371854240    stat.py                              <- S_IFMT
  0 3064371854247    stat.py                            <- S_ISDIR
  0 3064371854254    posixpath.py                     <- isdir
  0 3064371854262    site.py                          -> makepath
  0 3064371854271    posixpath.py                       -> join
  0 3064371854279    posixpath.py                       <- join
  0 3064371854286    posixpath.py                       -> abspath
  0 3064371854293    posixpath.py                         -> isabs
  0 3064371854302    posixpath.py                         <- isabs
  0 3064371854309    posixpath.py                         -> normpath
  0 3064371854325    posixpath.py                         <- normpath
  0 3064371854333    posixpath.py                       <- abspath
  0 3064371854341    posixpath.py                       -> normcase
  0 3064371854349    posixpath.py                       <- normcase
  0 3064371854356    site.py                          <- makepath
  0 3064371854364    posixpath.py                     -> isdir
  0 3064371854386    stat.py                            -> S_ISDIR
  0 3064371854393    stat.py                              -> S_IFMT
  0 3064371854400    stat.py                              <- S_IFMT
  0 3064371854408    stat.py                            <- S_ISDIR
  0 3064371854415    posixpath.py                     <- isdir
  0 3064371854423    site.py                          -> makepath
  0 3064371854431    posixpath.py                       -> join
  0 3064371854438    posixpath.py                       <- join
  0 3064371854446    posixpath.py                       -> abspath
  0 3064371854453    posixpath.py                         -> isabs
  0 3064371854461    posixpath.py                         <- isabs
  0 3064371854469    posixpath.py                         -> normpath
  0 3064371854485    posixpath.py                         <- normpath
  0 3064371854493    posixpath.py                       <- abspath
  0 3064371854500    posixpath.py                       -> normcase
  0 3064371854508    posixpath.py                       <- normcase
  0 3064371854516    site.py                          <- makepath
  0 3064371854524    posixpath.py                     -> isdir
  0 3064371854556    stat.py                            -> S_ISDIR
  0 3064371854563    stat.py                              -> S_IFMT
  0 3064371854571    stat.py                              <- S_IFMT
  0 3064371854578    stat.py                            <- S_ISDIR
  0 3064371854585    posixpath.py                     <- isdir
  0 3064371854593    site.py                          -> makepath
  0 3064371854601    posixpath.py                       -> join
  0 3064371854609    posixpath.py                       <- join
  0 3064371854616    posixpath.py                       -> abspath
  0 3064371854624    posixpath.py                         -> isabs
  0 3064371854632    posixpath.py                         <- isabs
  0 3064371854639    posixpath.py                         -> normpath
  0 3064371854655    posixpath.py                         <- normpath
  0 3064371854663    posixpath.py                       <- abspath
  0 3064371854671    posixpath.py                       -> normcase
  0 3064371854679    posixpath.py                       <- normcase
  0 3064371854686    site.py                          <- makepath
  0 3064371854694    posixpath.py                     -> isdir
  0 3064371854715    stat.py                            -> S_ISDIR
  0 3064371854722    stat.py                              -> S_IFMT
  0 3064371854730    stat.py                              <- S_IFMT
  0 3064371854737    stat.py                            <- S_ISDIR
  0 3064371854744    posixpath.py                     <- isdir
  0 3064371854752    site.py                          -> makepath
  0 3064371854759    posixpath.py                       -> join
  0 3064371854767    posixpath.py                       <- join
  0 3064371854774    posixpath.py                       -> abspath
  0 3064371854782    posixpath.py                         -> isabs
  0 3064371854790    posixpath.py                         <- isabs
  0 3064371854797    posixpath.py                         -> normpath
  0 3064371854813    posixpath.py                         <- normpath
  0 3064371854821    posixpath.py                       <- abspath
  0 3064371854829    posixpath.py                       -> normcase
  0 3064371854837    posixpath.py                       <- normcase
  0 3064371854844    site.py                          <- makepath
  0 3064371854852    posixpath.py                     -> isdir
  0 3064371854872    stat.py                            -> S_ISDIR
  0 3064371854879    stat.py                              -> S_IFMT
  0 3064371854887    stat.py                              <- S_IFMT
  0 3064371854894    stat.py                            <- S_ISDIR
  0 3064371854901    posixpath.py                     <- isdir
  0 3064371854909    site.py                          -> makepath
  0 3064371854917    posixpath.py                       -> join
  0 3064371854925    posixpath.py                       <- join
  0 3064371854932    posixpath.py                       -> abspath
  0 3064371854939    posixpath.py                         -> isabs
  0 3064371854947    posixpath.py                         <- isabs
  0 3064371854954    posixpath.py                         -> normpath
  0 3064371854970    posixpath.py                         <- normpath
  0 3064371854978    posixpath.py                       <- abspath
  0 3064371854986    posixpath.py                       -> normcase
  0 3064371854994    posixpath.py                       <- normcase
  0 3064371855001    site.py                          <- makepath
  0 3064371855009    site.py                        <- _init_pathinfo
  0 3064371855016    site.py                        -> makepath
  0 3064371855024    posixpath.py                     -> join
  0 3064371855032    posixpath.py                     <- join
  0 3064371855039    posixpath.py                     -> abspath
  0 3064371855047    posixpath.py                       -> isabs
  0 3064371855055    posixpath.py                       <- isabs
  0 3064371855063    posixpath.py                       -> normpath
  0 3064371855078    posixpath.py                       <- normpath
  0 3064371855086    posixpath.py                     <- abspath
  0 3064371855094    posixpath.py                     -> normcase
  0 3064371855101    posixpath.py                     <- normcase
  0 3064371855144    site.py                        <- makepath
  0 3064371855318    site.py                        -> addpackage
  0 3064371855327    posixpath.py                     -> join
  0 3064371855337    posixpath.py                     <- join
  0 3064371855411    site.py                          -> makepath
  0 3064371855420    posixpath.py                       -> join
  0 3064371855430    posixpath.py                       <- join
  0 3064371855437    posixpath.py                       -> abspath
  0 3064371855445    posixpath.py                         -> isabs
  0 3064371855453    posixpath.py                         <- isabs
  0 3064371855460    posixpath.py                         -> normpath
  0 3064371855477    posixpath.py                         <- normpath
  0 3064371855485    posixpath.py                       <- abspath
  0 3064371855493    posixpath.py                       -> normcase
  0 3064371855501    posixpath.py                       <- normcase
  0 3064371855509    site.py                          <- makepath
  0 3064371855517    posixpath.py                     -> exists
  0 3064371855542    posixpath.py                     <- exists
  0 3064371855591    site.py                        <- addpackage
  0 3064371855611    site.py                        -> addpackage
  0 3064371855618    posixpath.py                     -> join
  0 3064371855628    posixpath.py                     <- join
  0 3064371855683    site.py                          -> makepath
  0 3064371855692    posixpath.py                       -> join
  0 3064371855739    posixpath.py                       <- join
  0 3064371855747    posixpath.py                       -> abspath
  0 3064371855754    posixpath.py                         -> isabs
  0 3064371855763    posixpath.py                         <- isabs
  0 3064371855770    posixpath.py                         -> normpath
  0 3064371855788    posixpath.py                         <- normpath
  0 3064371855796    posixpath.py                       <- abspath
  0 3064371855803    posixpath.py                       -> normcase
  0 3064371855811    posixpath.py                       <- normcase
  0 3064371855818    site.py                          <- makepath
  0 3064371855826    posixpath.py                     -> exists
  0 3064371855851    posixpath.py                     <- exists
  0 3064371855880    site.py                        <- addpackage
  0 3064371855892    site.py                      <- addsitedir
  0 3064371855900    <string>                   <- ?
  0 3064371855915    site.py                  <- addpackage
  0 3064371855923    site.py                <- addsitedir
  0 3064371855932    posixpath.py           -> isdir
  0 3064371855965    posixpath.py           <- isdir
  0 3064371855973    site.py              <- addsitepackages
  0 3064371855982    site.py              -> setquit
  0 3064371855993    site.py              <- setquit
  0 3064371856000    site.py              -> setcopyright
  0 3064371856009    site.py                -> __init__
  0 3064371856019    site.py                <- __init__
  0 3064371856028    site.py                -> __init__
  0 3064371856037    site.py                <- __init__
  0 3064371856045    posixpath.py           -> dirname
  0 3064371856052    posixpath.py             -> split
  0 3064371856065    posixpath.py             <- split
  0 3064371856073    posixpath.py           <- dirname
  0 3064371856085    posixpath.py           -> join
  0 3064371856096    posixpath.py           <- join
  0 3064371856104    site.py                -> __init__
  0 3064371856113    site.py                <- __init__
  0 3064371856121    site.py              <- setcopyright
  0 3064371856128    site.py              -> sethelper
  0 3064371856136    site.py              <- sethelper
  0 3064371856143    site.py              -> aliasmbcs
  0 3064371856151    site.py              <- aliasmbcs
  0 3064371856158    site.py              -> setencoding
  0 3064371856166    site.py              <- setencoding
  0 3064371856173    site.py              -> execsitecustomize
  0 3064371871773    site.py              <- execsitecustomize
  0 3064371871794    site.py            <- main
  0 3064371871805    site.py          <- ?
  0 3064371872141    warnings.py      -> ?
  0 306437187232e    linecache.py       -> ?
  0 3064371872336    linecache.py       <- ?
  0 3064371872352    warnings.py        -> _OptionError
  0 3064371872361    warnings.py        <- _OptionError
  0 3064371872378    warnings.py        -> _processoptions
  0 3064371872387    warnings.py        <- _processoptions
  0 3064371872397    warnings.py        -> simplefilter
  0 3064371872410    warnings.py        <- simplefilter
  0 3064371872418    warnings.py        -> simplefilter
  0 3064371872428    warnings.py        <- simplefilter
  0 3064371872436    warnings.py      <- ?
  0 3064371886557    __init__.py      -> ?
  0 3064371891761    codecs.py          -> ?
  0 3064371891836    codecs.py            -> Codec
  0 3064371891848    codecs.py            <- Codec
  0 3064371891864    codecs.py            -> StreamWriter
  0 3064371891874    codecs.py            <- StreamWriter
  0 3064371891885    codecs.py            -> StreamReader
  0 3064371891897    codecs.py            <- StreamReader
  0 3064371891907    codecs.py            -> StreamReaderWriter
  0 3064371891918    codecs.py            <- StreamReaderWriter
  0 3064371891926    codecs.py            -> StreamRecoder
  0 3064371891938    codecs.py            <- StreamRecoder
  0 3064371891953    codecs.py          <- ?
  0 3064371902521    aliases.py         -> ?
  0 3064371902580    aliases.py         <- ?
  0 3064371902605    __init__.py        -> CodecRegistryError
  0 3064371902614    __init__.py        <- CodecRegistryError
  0 3064371902636    __init__.py      <- ?
  0 3064371902655    __init__.py      -> search_function
  0 3064371902666    __init__.py        -> normalize_encoding
  0 3064371902682    __init__.py        <- normalize_encoding
  0 3064371902888    ascii.py           -> ?
  0 3064371902900    ascii.py             -> Codec
  0 3064371902909    ascii.py             <- Codec
  0 3064371902922    ascii.py             -> StreamWriter
  0 3064371902930    ascii.py             <- StreamWriter
  0 3064371902941    ascii.py             -> StreamReader
  0 3064371902949    ascii.py             <- StreamReader
  0 3064371902972    ascii.py             -> StreamConverter
  0 3064371902981    ascii.py             <- StreamConverter
  0 3064371902993    ascii.py           <- ?
  0 3064371903009    ascii.py           -> getregentry
  0 3064371903018    ascii.py           <- getregentry
  0 3064371903044    __init__.py      <- search_function
  0 3064371903414    func_abc.py      -> ?
  0 3064371933251    func_abc.py        -> func_a
  0 3064372940696    func_abc.py          -> func_b
  0 3064373950608    func_abc.py            -> func_c
  0 3064374960497    func_abc.py            <- func_c
  0 3064374960512    func_abc.py          <- func_b
  0 3064374960520    func_abc.py        <- func_a
  0 3064374960528    func_abc.py      <- ?
^C

Here we can see that Python has done extensive pre-processing before it runs
the Code/Python/func_abc.py program itself.

This shows which function is calling which - the output above ends by
showing that func_a called func_b which in turn called func_c etc.

The TIME(us) column shows time from boot in microseconds.

The FILE column shows the file that was being executed.

If the output looks strange, check the CPU "C" column - if it changes,
then the output is probably shuffled. See Notes/ALLsnoop_notes.txt for
details and suggested workarounds.

See Notes/ALLflow_notes.txt for important notes about reading flow outputs.