New submission from Jeremy Blow:
Hi folks,
While going about running tkinter's update() call within a coroutine/asyncio
event loop in lieu of using mainloop(), I came across odd memory behavior on
MacOS where the cpython process gradually increases memory consumption.
Suspicious that there may be some unfavorable interaction between asyncio's use
of KqueueSelector and the lower level tk calls, I stripped things down to a
simple implementation and found the behavior exhibits itself without asyncio
involved at all.
```
import tkinter as tk
def start(root):
while True:
root.update()
# tk update loop: mem consumption increases
start(tk.Tk())
# tk mainloop: mem consumption stable
# tk.Tk().mainloop()
```
# Using tk mainloop, ~1 minute
/Users/jeremy$ /usr/bin/time -l python3.5 tk_perf.py
60.26 real 0.16 user 0.07 sys
31756288 maximum resident set size
0 average shared memory size
0 average unshared data size
0 average unshared stack size
10215 page reclaims
0 page faults
0 swaps
0 block input operations
7 block output operations
0 messages sent
0 messages received
0 signals received
7 voluntary context switches
1788 involuntary context switches
# tk update loop, ~1 minute
/Users/jeremy$ /usr/bin/time -l python3.5 tk_perf.py
Traceback (most recent call last):
File "tk_perf.py", line 10, in <module>
start(tk.Tk())
File "tk_perf.py", line 7, in start
root.update()
File
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/tkinter/__init__.py",
line 1025, in update
self.tk.call('update')
_tkinter.TclError: can't invoke "update" command: application has been
destroyed
60.37 real 38.09 user 20.54 sys
545976320 maximum resident set size
0 average shared memory size
0 average unshared data size
0 average unshared stack size
135760 page reclaims
2 page faults
0 swaps
0 block input operations
9 block output operations
0 messages sent
0 messages received
0 signals received
474742 voluntary context switches
1672276 involuntary context switches
That's 31,756,288 versus 545,976,320 after ~1 minute. If I let the update loop
continue, it eventually consumes many gigabytes of memory.
Obviously something is very wrong here. To further the fun, I've tested this
across three Macs, and only two exhibit the behavior. This may or may not be
interesting to those who are already aware of Tk / Cocoa event loop interaction
issues.
+---------------+----------------+----------------+----------+
| MacOS Version | Python Version | Tcl/Tk Version | Exhibits |
+---------------+----------------+----------------+----------+
| 10.11.3/15D21 | 3.5.1 | 8.5/8.5 | Yes |
| 10.9.4/13E28 | 3.5.1 | 8.5/8.5 | No |
| 10.11.2/15C50 | 3.5.1 | 8.5/8.5 | Yes |
+---------------+----------------+----------------+----------+
Could someone illuminate me as to as whether I'm facing a PEBKAC, update() is
lacking some housekeeping that exists in the mainloop routine, a new/known bug,
or other? Further troubleshooting steps I can take are appreciated, I'm happy
to try to isolate it further.
My use case is a tkinter app written solely w/ coroutines thus the event loop
selection is constrained.
Env details below.. Cheers.
~~~ENV~~~~
/Users/jeremy$ sw_vers
ProductName: Mac OS X
ProductVersion: 10.11.3
BuildVersion: 15D21
/Users/jeremy$ python3.5 --version
Python 3.5.1
>>> import _tkinter
>>> _tkinter.__spec__
ModuleSpec(name='_tkinter',
loader=<_frozen_importlib_external.ExtensionFileLoader object at 0x1028ae5c0>,
origin='/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/lib-dynload/_tkinter.cpython-35m-darwin.so')
>>> _tkinter.TCL_VERSION, _tkinter.TK_VERSION
('8.5', '8.5')
/Users/jeremy$ python3.5 -m sysconfig "sysconfig.get_config_vars()"
Platform: "macosx-10.11-x86_64"
Python version: "3.5"
Current installation scheme: "posix_prefix"
Paths:
data =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
include =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include/python3.5m"
platinclude =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include/python3.5m"
platlib =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages"
platstdlib =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5"
purelib =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages"
scripts =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/bin"
stdlib =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5"
Variables:
ABIFLAGS = "m"
AC_APPLE_UNIVERSAL_BUILD = "0"
AIX_GENUINE_CPLUSPLUS = "0"
AR = "ar"
ARFLAGS = "rc"
ASDLGEN = "python ./Parser/asdl_c.py"
ASDLGEN_FILES = "./Parser/asdl.py ./Parser/asdl_c.py"
AST_ASDL = "./Parser/Python.asdl"
AST_C = "Python/Python-ast.c"
AST_C_DIR = "Python"
AST_H = "Include/Python-ast.h"
AST_H_DIR = "Include"
BASECFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code
-fno-common -dynamic"
BASECPPFLAGS = ""
BASEMODLIBS = ""
BINDIR =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/bin"
BINLIBDEST =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5"
BLDLIBRARY = ""
BLDSHARED = "clang -bundle -undefined dynamic_lookup"
BUILDEXE = ".exe"
BUILDPYTHON = "python.exe"
BUILD_GNU_TYPE = "x86_64-apple-darwin15.4.0"
BYTESTR_DEPS = "\"
CC = "clang"
CCSHARED = ""
CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code
-fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes"
CFLAGSFORSHARED = ""
CFLAGS_NODIST = ""
CONFIGFILES = "configure configure.ac acconfig.h pyconfig.h.in
Makefile.pre.in"
CONFIGURE_CFLAGS = ""
CONFIGURE_CFLAGS_NODIST = "-Werror=declaration-after-statement"
CONFIGURE_CPPFLAGS = ""
CONFIGURE_LDFLAGS = ""
CONFIG_ARGS = "'--prefix=/usr/local/Cellar/python3/3.5.1'
'--enable-ipv6' '--datarootdir=/usr/local/Cellar/python3/3.5.1/share'
'--datadir=/usr/local/Cellar/python3/3.5.1/share'
'--enable-framework=/usr/local/Cellar/python3/3.5.1/Frameworks'
'--without-ensurepip' '--without-gcc' 'MACOSX_DEPLOYMENT_TARGET=10.11'
'CC=clang'
'PKG_CONFIG_PATH=/usr/local/opt/xz/lib/pkgconfig:/usr/local/opt/sqlite/lib/pkgconfig:/usr/local/opt/openssl/lib/pkgconfig'
'PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig:/usr/local/Library/ENV/pkgconfig/10.11'"
CONFINCLUDEDIR =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include"
CONFINCLUDEPY =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include/python3.5m"
COREPYTHONPATH = ":plat-darwin"
COVERAGE_INFO =
"/private/tmp/python320160418-12904-1t6reri/Python-3.5.1/coverage.info"
COVERAGE_REPORT =
"/private/tmp/python320160418-12904-1t6reri/Python-3.5.1/lcov-report"
COVERAGE_REPORT_OPTIONS = "--no-branch-coverage --title "CPython lcov
report""
CPPFLAGS = "-I. -IInclude -I./Include"
CXX = "clang++"
DESTDIRS =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5
/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib
/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5
/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/lib-dynload"
DESTLIB =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5"
DESTPATH = ""
DESTSHARED =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/lib-dynload"
DIRMODE = "755"
DIST = "README ChangeLog configure configure.ac acconfig.h
pyconfig.h.in Makefile.pre.in Include Lib Misc Ext-dummy"
DISTDIRS = "Include Lib Misc Ext-dummy"
DISTFILES = "README ChangeLog configure configure.ac acconfig.h
pyconfig.h.in Makefile.pre.in"
DLINCLDIR = "."
DLLLIBRARY = ""
DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754 = "0"
DOUBLE_IS_BIG_ENDIAN_IEEE754 = "0"
DOUBLE_IS_LITTLE_ENDIAN_IEEE754 = "1"
DYNLOADFILE = "dynload_shlib.o"
ENABLE_IPV6 = "1"
ENSUREPIP = "no"
EXE = ""
EXEMODE = "755"
EXTRAMACHDEPPATH = ""
EXTRATESTOPTS = ""
EXTRA_CFLAGS = ""
EXT_SUFFIX = ".cpython-35m-darwin.so"
FILEMODE = "644"
FLOCK_NEEDS_LIBBSD = "0"
GETPGRP_HAVE_ARG = "0"
GETTIMEOFDAY_NO_TZ = "0"
GNULD = "no"
GRAMMAR_C = "Python/graminit.c"
GRAMMAR_H = "Include/graminit.h"
GRAMMAR_INPUT = "./Grammar/Grammar"
HAVE_ACCEPT4 = "0"
HAVE_ACOSH = "1"
HAVE_ADDRINFO = "1"
HAVE_ALARM = "1"
HAVE_ALIGNED_REQUIRED = "0"
HAVE_ALLOCA_H = "1"
HAVE_ALTZONE = "0"
HAVE_ASINH = "1"
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HAVE_ATANH = "1"
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HAVE_BLUETOOTH_H = "0"
HAVE_BROKEN_MBSTOWCS = "0"
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HAVE_BROKEN_PIPE_BUF = "0"
HAVE_BROKEN_POLL = "0"
HAVE_BROKEN_POSIX_SEMAPHORES = "0"
HAVE_BROKEN_PTHREAD_SIGMASK = "0"
HAVE_BROKEN_SEM_GETVALUE = "1"
HAVE_BROKEN_UNSETENV = "0"
HAVE_BUILTIN_ATOMIC = "1"
HAVE_C99_BOOL = "1"
HAVE_CHFLAGS = "1"
HAVE_CHOWN = "1"
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"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include
/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include
/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include/python3.5m
/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include/python3.5m"
INCLUDEDIR =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include"
INCLUDEPY =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/include/python3.5m"
INSTALL = "/usr/bin/install -c"
INSTALL_DATA = "/usr/bin/install -c -m 644"
INSTALL_PROGRAM = "/usr/bin/install -c"
INSTALL_SCRIPT = "/usr/bin/install -c"
INSTALL_SHARED = "/usr/bin/install -c -m 555"
INSTSONAME = "Python.framework/Versions/3.5/Python"
IO_H = "Modules/_io/_iomodule.h"
IO_OBJS = "\"
LDCXXSHARED = "clang++ -bundle -undefined dynamic_lookup"
LDFLAGS = ""
LDLAST = ""
LDLIBRARY = "Python.framework/Versions/3.5/Python"
LDLIBRARYDIR = ""
LDSHARED = "clang -bundle -undefined dynamic_lookup"
LDVERSION = "3.5m"
LIBC = ""
LIBDEST =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5"
LIBDIR =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib"
LIBFFI_INCLUDEDIR = ""
LIBM = ""
LIBOBJDIR = "Python/"
LIBOBJS = ""
LIBPC =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/pkgconfig"
LIBPL =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/config-3.5m"
LIBRARY = "libpython3.5m.a"
LIBRARY_OBJS = "\"
LIBRARY_OBJS_OMIT_FROZEN = "\"
LIBS = "-ldl -framework CoreFoundation"
LIBSUBDIRS = "tkinter tkinter/test tkinter/test/test_tkinter \"
LINKCC = "clang"
LINKFORSHARED = "-Wl,-stack_size,1000000 -framework CoreFoundation
Python.framework/Versions/3.5/Python"
LIPO_32BIT_FLAGS = ""
LLVM_PROF_ERR = "yes"
LLVM_PROF_FILE = "LLVM_PROFILE_FILE="code-%p.profclangr""
LLVM_PROF_MERGER = "llvm-profdata merge -output=code.profclangd
*.profclangr"
LN = "ln"
LOCALMODLIBS = ""
LOG1P_DROPS_ZERO_SIGN = "0"
MACHDEP = "darwin"
MACHDEPPATH = ":plat-darwin"
MACHDEPS = "plat-darwin"
MACHDEP_OBJS = ""
MACHDESTLIB =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5"
MACOSX_DEPLOYMENT_TARGET = "10.11"
MAINCC = "clang"
MAJOR_IN_MKDEV = "0"
MAJOR_IN_SYSMACROS = "0"
MAKESETUP = "./Modules/makesetup"
MANDIR = "/usr/local/Cellar/python3/3.5.1/share/man"
MKDIR_P = "./install-sh -c -d"
MODLIBS = ""
MODOBJS = "Modules/_threadmodule.o Modules/signalmodule.o
Modules/posixmodule.o Modules/errnomodule.o Modules/pwdmodule.o
Modules/_sre.o Modules/_codecsmodule.o Modules/_weakref.o
Modules/_functoolsmodule.o Modules/_operator.o Modules/_collectionsmodule.o
Modules/itertoolsmodule.o Modules/atexitmodule.o Modules/_stat.o
Modules/timemodule.o Modules/_localemodule.o Modules/_iomodule.o
Modules/iobase.o Modules/fileio.o Modules/bytesio.o Modules/bufferedio.o
Modules/textio.o Modules/stringio.o Modules/zipimport.o
Modules/faulthandler.o Modules/_tracemalloc.o Modules/hashtable.o
Modules/symtablemodule.o Modules/xxsubtype.o"
MODULE_OBJS = "\"
MULTIARCH = ""
MVWDELCH_IS_EXPRESSION = "1"
NO_AS_NEEDED = ""
OBJECT_OBJS = "\"
OPCODETARGETGEN = "\"
OPCODETARGETGEN_FILES = "\"
OPCODETARGETS_H = "\"
OPCODE_H = "./Include/opcode.h"
OPCODE_H_DIR = "./Include"
OPCODE_H_GEN = "python ./Tools/scripts/generate_opcode_h.py
./Lib/opcode.py ./Include/opcode.h"
OPCODE_H_SCRIPT = "./Tools/scripts/generate_opcode_h.py"
OPT = "-DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes"
OTHER_LIBTOOL_OPT = ""
PACKAGE_BUGREPORT = "0"
PACKAGE_NAME = "0"
PACKAGE_STRING = "0"
PACKAGE_TARNAME = "0"
PACKAGE_URL = "0"
PACKAGE_VERSION = "0"
PARSER_HEADERS = "\"
PARSER_OBJS = "\ Parser/myreadline.o Parser/parsetok.o
Parser/tokenizer.o"
PGEN = "Parser/pgen"
PGENOBJS = "\ \"
PGENSRCS = "\ \"
PGOBJS = "\"
PGO_PROF_GEN_FLAG = "-fprofile-instr-generate"
PGO_PROF_USE_FLAG = "-fprofile-instr-use=code.profclangd"
PGSRCS = "\"
PLATDIR = "plat-darwin"
POBJS = "\"
POSIX_SEMAPHORES_NOT_ENABLED = "0"
PROFILE_TASK = "-m test.regrtest --pgo"
PSRCS = "\"
PTHREAD_SYSTEM_SCHED_SUPPORTED = "1"
PURIFY = ""
PY3LIBRARY = ""
PYLONG_BITS_IN_DIGIT = "0"
PYTHON = "python"
PYTHONFRAMEWORK = "Python"
PYTHONFRAMEWORKDIR = "Python.framework"
PYTHONFRAMEWORKINSTALLDIR =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework"
PYTHONFRAMEWORKPREFIX = "/usr/local/Cellar/python3/3.5.1/Frameworks"
PYTHONPATH = ":plat-darwin"
PYTHON_FOR_BUILD = "./python.exe -E"
PYTHON_HEADERS = "\"
PYTHON_OBJS = "\"
PY_CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code
-fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes"
PY_CFLAGS_NODIST = "-Werror=declaration-after-statement"
PY_CORE_CFLAGS = "-Wno-unused-result -Wsign-compare -Wunreachable-code
-fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes
-Werror=declaration-after-statement -I. -IInclude -I./Include -DPy_BUILD_CORE"
PY_CPPFLAGS = "-I. -IInclude -I./Include"
PY_FORMAT_LONG_LONG = ""ll""
PY_FORMAT_SIZE_T = ""z""
PY_LDFLAGS = ""
Py_DEBUG = "0"
Py_ENABLE_SHARED = "0"
Py_HASH_ALGORITHM = "0"
QUICKTESTOPTS = "-x test_subprocess test_io test_lib2to3 \"
RANLIB = "ranlib"
READELF = ":"
RESSRCDIR = "Mac/Resources/framework"
RETSIGTYPE = "void"
RUNSHARED =
"DYLD_FRAMEWORK_PATH=/private/tmp/python320160418-12904-1t6reri/Python-3.5.1"
SCRIPTDIR =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib"
SETPGRP_HAVE_ARG = "0"
SGI_ABI = ""
SHELL = "/bin/sh"
SHLIBS = "-ldl -framework CoreFoundation"
SHLIB_SUFFIX = ".so"
SIGNAL_OBJS = ""
SIGNED_RIGHT_SHIFT_ZERO_FILLS = "0"
SITEPATH = ""
SIZEOF_DOUBLE = "8"
SIZEOF_FLOAT = "4"
SIZEOF_FPOS_T = "8"
SIZEOF_INT = "4"
SIZEOF_LONG = "8"
SIZEOF_LONG_DOUBLE = "16"
SIZEOF_LONG_LONG = "8"
SIZEOF_OFF_T = "8"
SIZEOF_PID_T = "4"
SIZEOF_PTHREAD_T = "8"
SIZEOF_SHORT = "2"
SIZEOF_SIZE_T = "8"
SIZEOF_TIME_T = "8"
SIZEOF_UINTPTR_T = "8"
SIZEOF_VOID_P = "8"
SIZEOF_WCHAR_T = "4"
SIZEOF__BOOL = "1"
SO = ".cpython-35m-darwin.so"
SOABI = "cpython-35m-darwin"
SRCDIRS = "Parser Grammar Objects Python Modules Mac Programs"
SRC_GDB_HOOKS = "./Tools/gdb/libpython.py"
STDC_HEADERS = "1"
STRICT_SYSV_CURSES = "/* Don't use ncurses extensions */"
STRIPFLAG = "-s"
SUBDIRS = ""
SUBDIRSTOO = "Include Lib Misc"
SYSLIBS = ""
SYS_SELECT_WITH_SYS_TIME = "1"
TANH_PRESERVES_ZERO_SIGN = "1"
TCLTK_INCLUDES = ""
TCLTK_LIBS = ""
TESTOPTS = ""
TESTPATH = ""
TESTPYTHON =
"DYLD_FRAMEWORK_PATH=/private/tmp/python320160418-12904-1t6reri/Python-3.5.1
./python.exe"
TESTPYTHONOPTS = ""
TESTRUNNER =
"DYLD_FRAMEWORK_PATH=/private/tmp/python320160418-12904-1t6reri/Python-3.5.1
./python.exe ./Tools/scripts/run_tests.py"
TESTTIMEOUT = "3600"
THREADOBJ = "Python/thread.o"
TIMEMODULE_LIB = "0"
TIME_WITH_SYS_TIME = "1"
TM_IN_SYS_TIME = "0"
UNICODE_DEPS = "\"
UNIVERSALSDK = ""
USE_COMPUTED_GOTOS = "0"
USE_INLINE = "1"
VA_LIST_IS_ARRAY = "1"
VERSION = "3.5"
WANT_SIGFPE_HANDLER = "0"
WINDOW_HAS_FLAGS = "0"
WITH_DOC_STRINGS = "1"
WITH_DYLD = "1"
WITH_LIBINTL = "0"
WITH_NEXT_FRAMEWORK = "1"
WITH_PYMALLOC = "1"
WITH_THREAD = "1"
WITH_TSC = "0"
WITH_VALGRIND = "0"
X87_DOUBLE_ROUNDING = "0"
XMLLIBSUBDIRS = "xml xml/dom xml/etree xml/parsers xml/sax"
abiflags = "m"
abs_builddir = "/private/tmp/python320160418-12904-1t6reri/Python-3.5.1"
abs_srcdir = "/private/tmp/python320160418-12904-1t6reri/Python-3.5.1"
base =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
datarootdir = "/usr/local/Cellar/python3/3.5.1/share"
exec_prefix =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
installed_base =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
installed_platbase =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
platbase =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
prefix =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5"
projectbase =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/bin"
py_version = "3.5.1"
py_version_nodot = "35"
py_version_short = "3.5"
srcdir =
"/usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/config-3.5m"
userbase = "/Users/jeremy/Library/Python/3.5"
----------
components: Tkinter
messages: 269086
nosy: jeremyblow
priority: normal
severity: normal
status: open
title: Runaway memory consumption using update()
type: resource usage
versions: Python 3.5
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue27371>
_______________________________________
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