Bug in dependency resolution with pinned packages with numpy and pandas.

[sg-s]

Description

Steps to reproduce:

1. create a docker container using python:3.10

here is my full dockerfile:

FROM python:3.10

ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONFAULTHANDLER 1
ENV DEBIAN_FRONTEND=noninteractive


# Create srinivas user
RUN addgroup srinivas \
    && adduser --disabled-password --home /srinivas --ingroup srinivas srinivas

WORKDIR /srinivas
USER srinivas

RUN curl -sSL https://install.python-poetry.org | python3 -

ENV PATH="~/.local/bin:$PATH"


CMD ["/bin/bash"]

2. set up a new poertry project using:

mkdir test
cd test
poetry init

3. add a specific version of numpy

srinivas@c5a0af2d2be4:~/test$ poetry add numpy=1.23
Creating virtualenv test-fa9Suxc8-py3.10 in /srinivas/.cache/pypoetry/virtualenvs

Updating dependencies
Resolving dependencies... (0.2s)

Package operations: 1 install, 0 updates, 0 removals

  - Installing numpy (1.23.0)

Writing lock file
srinivas@c5a0af2d2be4:~/test$ poetry add pandas
Using version ^2.2.2 for pandas

Updating dependencies
Resolving dependencies... (0.4s)

Because no versions of pandas match >2.2.2,<3.0.0
 and pandas (2.2.2) depends on numpy (>=1.23.2), pandas (>=2.2.2,<3.0.0) requires numpy (>=1.23.2).
So, because test depends on both numpy (1.23) and pandas (^2.2.2), version solving failed.
srinivas@c5a0af2d2be4:~/test$

Now, this is a bug. I know, because, when I do this:

srinivas@c5a0af2d2be4:~/test$ poetry add pandas@*

Updating dependencies
Resolving dependencies... (4.6s)

Package operations: 5 installs, 0 updates, 0 removals

  - Installing six (1.16.0)
  - Installing python-dateutil (2.9.0.post0)
  - Installing pytz (2024.1)
  - Installing tzdata (2024.1)
  - Installing pandas (2.2.2)

Writing lock file

it works. Even stranger, inspecting the lock file, I see that pandas 1.5.1 is installed:

[[package]]
name = "pandas"
version = "1.5.1"

Even stranger, it turns out that v2.2.2 is ACTUALLY installed:

srinivas@c5a0af2d2be4:~/test$ poetry run python
Python 3.10.14 (main, May 14 2024, 08:39:53) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pandas as pd
>>> pd.__version__
'2.2.2'

Summary:

1. poetry claims not to be able to install pandas 2.2.2, when it actually can
2. poetry installs 1.5.1 for some reason, but also 2.2.2

Workarounds

workaround described in descrioption.

TLDR, instead of doing

poetry add pandas

do

poetry add pandas@*

Poetry Installation Method

other

Operating System

official docker image of python 3.10 running on macOS

Poetry Version

Poetry (version 1.8.3)

Poetry Configuration

cache-dir = "/srinivas/.cache/pypoetry"
experimental.system-git-client = false
installer.max-workers = null
installer.modern-installation = true
installer.no-binary = null
installer.parallel = true
keyring.enabled = true
solver.lazy-wheel = true
virtualenvs.create = true
virtualenvs.in-project = null
virtualenvs.options.always-copy = false
virtualenvs.options.no-pip = false
virtualenvs.options.no-setuptools = false
virtualenvs.options.system-site-packages = false
virtualenvs.path = "{cache-dir}/virtualenvs"  # /srinivas/.cache/pypoetry/virtualenvs
virtualenvs.prefer-active-python = false
virtualenvs.prompt = "{project_name}-py{python_version}"
warnings.export = true

Python Sysconfig

Platform: "linux-x86_64"
Python version: "3.10"
Current installation scheme: "posix_prefix"

Paths: 
	data = "/usr/local"
	include = "/usr/local/include/python3.10"
	platinclude = "/usr/local/include/python3.10"
	platlib = "/usr/local/lib/python3.10/site-packages"
	platstdlib = "/usr/local/lib/python3.10"
	purelib = "/usr/local/lib/python3.10/site-packages"
	scripts = "/usr/local/bin"
	stdlib = "/usr/local/lib/python3.10"

Variables: 
	ABIFLAGS = ""
	AC_APPLE_UNIVERSAL_BUILD = "0"
	AIX_BUILDDATE = "0"
	AIX_GENUINE_CPLUSPLUS = "0"
	ALIGNOF_LONG = "8"
	ALIGNOF_SIZE_T = "8"
	ALT_SOABI = "0"
	ANDROID_API_LEVEL = "0"
	AR = "ar"
	ARFLAGS = "rcs"
	BASECFLAGS = "-Wno-unused-result -Wsign-compare"
	BASECPPFLAGS = ""
	BASEMODLIBS = ""
	BINDIR = "/usr/local/bin"
	BINLIBDEST = "/usr/local/lib/python3.10"
	BLDLIBRARY = "-L. -lpython3.10"
	BLDSHARED = "gcc -shared"
	BUILDEXE = ""
	BUILDPYTHON = "python"
	BUILD_GNU_TYPE = "x86_64-pc-linux-gnu"
	BYTESTR_DEPS = "\"
	CC = "gcc"
	CCSHARED = "-fPIC"
	CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall"
	CFLAGSFORSHARED = "-fPIC"
	CFLAGS_ALIASING = ""
	CFLAGS_NODIST = ""
	CONFIGFILES = "configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in"
	CONFIGURE_CFLAGS = ""
	CONFIGURE_CFLAGS_NODIST = "-fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fvisibility=hidden"
	CONFIGURE_CPPFLAGS = ""
	CONFIGURE_LDFLAGS = ""
	CONFIGURE_LDFLAGS_NODIST = "-fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g"
	CONFIG_ARGS = "'--build=x86_64-linux-gnu' '--enable-loadable-sqlite-extensions' '--enable-optimizations' '--enable-option-checking=fatal' '--enable-shared' '--with-lto' '--with-system-expat' '--without-ensurepip' 'build_alias=x86_64-linux-gnu'"
	CONFINCLUDEDIR = "/usr/local/include"
	CONFINCLUDEPY = "/usr/local/include/python3.10"
	COREPYTHONPATH = ""
	COVERAGE_INFO = "/usr/src/python/coverage.info"
	COVERAGE_REPORT = "/usr/src/python/lcov-report"
	COVERAGE_REPORT_OPTIONS = "--no-branch-coverage --title "CPython lcov report""
	CPPFLAGS = "-I. -I./Include"
	CXX = "g++"
	DESTDIRS = "/usr/local /usr/local/lib /usr/local/lib/python3.10 /usr/local/lib/python3.10/lib-dynload"
	DESTLIB = "/usr/local/lib/python3.10"
	DESTPATH = ""
	DESTSHARED = "/usr/local/lib/python3.10/lib-dynload"
	DFLAGS = ""
	DIRMODE = "755"
	DIST = "README.rst 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.rst 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"
	DTRACE = ""
	DTRACE_DEPS = "\"
	DTRACE_HEADERS = ""
	DTRACE_OBJS = ""
	DYNLOADFILE = "dynload_shlib.o"
	ENABLE_IPV6 = "1"
	ENSUREPIP = "no"
	EXE = ""
	EXEMODE = "755"
	EXPERIMENTAL_ISOLATED_SUBINTERPRETERS = "0"
	EXPORTSFROM = ""
	EXPORTSYMS = ""
	EXTRATESTOPTS = ""
	EXTRA_CFLAGS = ""
	EXT_SUFFIX = ".cpython-310-x86_64-linux-gnu.so"
	FILEMODE = "644"
	FLOAT_WORDS_BIGENDIAN = "0"
	FLOCK_NEEDS_LIBBSD = "0"
	GETPGRP_HAVE_ARG = "0"
	GITBRANCH = ""
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	GNULD = "yes"
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	HAVE_BROKEN_PIPE_BUF = "0"
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	HAVE_BROKEN_PTHREAD_SIGMASK = "0"
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	HAVE_STRUCT_STAT_ST_BIRTHTIME = "0"
	HAVE_STRUCT_STAT_ST_BLKSIZE = "1"
	HAVE_STRUCT_STAT_ST_BLOCKS = "1"
	HAVE_STRUCT_STAT_ST_FLAGS = "0"
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	HAVE_STRUCT_STAT_ST_RDEV = "1"
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	HAVE_SYS_TERMIO_H = "0"
	HAVE_SYS_TIMES_H = "1"
	HAVE_SYS_TIME_H = "1"
	HAVE_SYS_TYPES_H = "1"
	HAVE_SYS_UIO_H = "1"
	HAVE_SYS_UN_H = "1"
	HAVE_SYS_UTSNAME_H = "1"
	HAVE_SYS_WAIT_H = "1"
	HAVE_SYS_XATTR_H = "1"
	HAVE_TCGETPGRP = "1"
	HAVE_TCSETPGRP = "1"
	HAVE_TEMPNAM = "1"
	HAVE_TERMIOS_H = "1"
	HAVE_TERM_H = "1"
	HAVE_TGAMMA = "1"
	HAVE_TIMEGM = "1"
	HAVE_TIMES = "1"
	HAVE_TMPFILE = "1"
	HAVE_TMPNAM = "1"
	HAVE_TMPNAM_R = "1"
	HAVE_TM_ZONE = "1"
	HAVE_TRUNCATE = "1"
	HAVE_TZNAME = "0"
	HAVE_UCS4_TCL = "0"
	HAVE_UNAME = "1"
	HAVE_UNISTD_H = "1"
	HAVE_UNLINKAT = "1"
	HAVE_USABLE_WCHAR_T = "0"
	HAVE_UTIL_H = "0"
	HAVE_UTIMENSAT = "1"
	HAVE_UTIMES = "1"
	HAVE_UTIME_H = "1"
	HAVE_UUID_CREATE = "0"
	HAVE_UUID_ENC_BE = "0"
	HAVE_UUID_GENERATE_TIME_SAFE = "1"
	HAVE_UUID_H = "0"
	HAVE_UUID_UUID_H = "1"
	HAVE_VFORK = "1"
	HAVE_WAIT3 = "1"
	HAVE_WAIT4 = "1"
	HAVE_WAITID = "1"
	HAVE_WAITPID = "1"
	HAVE_WCHAR_H = "1"
	HAVE_WCSCOLL = "1"
	HAVE_WCSFTIME = "1"
	HAVE_WCSXFRM = "1"
	HAVE_WMEMCMP = "1"
	HAVE_WORKING_TZSET = "1"
	HAVE_WRITEV = "1"
	HAVE_ZLIB_COPY = "1"
	HAVE__GETPTY = "0"
	HOST_GNU_TYPE = "x86_64-pc-linux-gnu"
	INCLDIRSTOMAKE = "/usr/local/include /usr/local/include /usr/local/include/python3.10 /usr/local/include/python3.10"
	INCLUDEDIR = "/usr/local/include"
	INCLUDEPY = "/usr/local/include/python3.10"
	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 755"
	INSTSONAME = "libpython3.10.so.1.0"
	IO_H = "Modules/_io/_iomodule.h"
	IO_OBJS = "\"
	LDCXXSHARED = "g++ -shared"
	LDFLAGS = ""
	LDFLAGS_NODIST = ""
	LDLIBRARY = "libpython3.10.so"
	LDLIBRARYDIR = ""
	LDSHARED = "gcc -shared"
	LDVERSION = "3.10"
	LIBC = ""
	LIBDEST = "/usr/local/lib/python3.10"
	LIBDIR = "/usr/local/lib"
	LIBFFI_INCLUDEDIR = ""
	LIBM = "-lm"
	LIBOBJDIR = "Python/"
	LIBOBJS = ""
	LIBPC = "/usr/local/lib/pkgconfig"
	LIBPL = "/usr/local/lib/python3.10/config-3.10-x86_64-linux-gnu"
	LIBPYTHON = ""
	LIBRARY = "libpython3.10.a"
	LIBRARY_DEPS = "libpython3.10.a libpython3.10.so libpython3.so"
	LIBRARY_OBJS = "\"
	LIBRARY_OBJS_OMIT_FROZEN = "\"
	LIBS = "-lcrypt -ldl  -lm"
	LIBSUBDIRS = "asyncio \"
	LINKCC = "gcc"
	LINKFORSHARED = "-Xlinker -export-dynamic"
	LIPO_32BIT_FLAGS = ""
	LIPO_INTEL64_FLAGS = ""
	LLVM_PROF_ERR = "no"
	LLVM_PROF_FILE = ""
	LLVM_PROF_MERGER = "true"
	LN = "ln"
	LOCALMODLIBS = ""
	MACHDEP = "linux"
	MACHDEP_OBJS = ""
	MACHDESTLIB = "/usr/local/lib/python3.10"
	MACOSX_DEPLOYMENT_TARGET = ""
	MAINCC = "gcc"
	MAJOR_IN_MKDEV = "0"
	MAJOR_IN_SYSMACROS = "1"
	MAKESETUP = "./Modules/makesetup"
	MANDIR = "/usr/local/share/man"
	MKDIR_P = "/usr/bin/mkdir -p"
	MODBUILT_NAMES = "posix  errno  pwd  _sre  _codecs  _weakref  _functools  _operator  _collections  _abc  itertools  atexit  _signal  _stat  time  _thread  _locale  _io  faulthandler  _tracemalloc  _symtable  xxsubtype"
	MODDISABLED_NAMES = ""
	MODLIBS = ""
	MODOBJS = "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/_abc.o  Modules/itertoolsmodule.o  Modules/atexitmodule.o  Modules/signalmodule.o  Modules/_stat.o  Modules/timemodule.o  Modules/_threadmodule.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/faulthandler.o  Modules/_tracemalloc.o  Modules/symtablemodule.o  Modules/xxsubtype.o"
	MODULE_OBJS = "\"
	MULTIARCH = "x86_64-linux-gnu"
	MULTIARCH_CPPFLAGS = "-DMULTIARCH=\"x86_64-linux-gnu\""
	MVWDELCH_IS_EXPRESSION = "1"
	NO_AS_NEEDED = "-Wl,--no-as-needed"
	OBJECT_OBJS = "\"
	OPENSSL_INCLUDES = ""
	OPENSSL_LDFLAGS = ""
	OPENSSL_LIBS = "-lssl -lcrypto"
	OPENSSL_RPATH = ""
	OPT = "-DNDEBUG -g -fwrapv -O3 -Wall"
	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/tokenizer.o"
	PEGEN_HEADERS = "\"
	PEGEN_OBJS = "\"
	PGO_PROF_GEN_FLAG = "-fprofile-generate"
	PGO_PROF_USE_FLAG = "-fprofile-use -fprofile-correction"
	PLATLIBDIR = "lib"
	POBJS = "\"
	POSIX_SEMAPHORES_NOT_ENABLED = "0"
	PROFILE_TASK = "-m test --pgo --timeout=1200"
	PTHREAD_KEY_T_IS_COMPATIBLE_WITH_INT = "1"
	PTHREAD_SYSTEM_SCHED_SUPPORTED = "1"
	PURIFY = ""
	PY3LIBRARY = "libpython3.so"
	PYLONG_BITS_IN_DIGIT = "0"
	PYTHON = "python"
	PYTHONFRAMEWORK = ""
	PYTHONFRAMEWORKDIR = "no-framework"
	PYTHONFRAMEWORKINSTALLDIR = ""
	PYTHONFRAMEWORKPREFIX = ""
	PYTHONPATH = ""
	PYTHON_FOR_BUILD = "./python -E"
	PYTHON_FOR_REGEN = ""
	PYTHON_HEADERS = "\"
	PYTHON_OBJS = "\"
	PY_BUILTIN_HASHLIB_HASHES = ""md5,sha1,sha256,sha512,sha3,blake2""
	PY_BUILTIN_MODULE_CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal -I. -I./Include -fPIC -DPy_BUILD_CORE_BUILTIN"
	PY_CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall"
	PY_CFLAGS_NODIST = "-fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal"
	PY_COERCE_C_LOCALE = "1"
	PY_CORE_CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal -I. -I./Include -fPIC -DPy_BUILD_CORE"
	PY_CORE_LDFLAGS = "-fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g"
	PY_CPPFLAGS = "-I. -I./Include"
	PY_ENABLE_SHARED = "1"
	PY_FORMAT_SIZE_T = ""z""
	PY_LDFLAGS = ""
	PY_LDFLAGS_NODIST = "-fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g"
	PY_SSL_DEFAULT_CIPHERS = "1"
	PY_SSL_DEFAULT_CIPHER_STRING = "0"
	PY_STDMODULE_CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fno-semantic-interposition -flto -fuse-linker-plugin -ffat-lto-objects -flto-partition=none -g -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal -I. -I./Include -fPIC"
	Py_DEBUG = "0"
	Py_ENABLE_SHARED = "1"
	Py_HASH_ALGORITHM = "0"
	Py_TRACE_REFS = "0"
	QUICKTESTOPTS = "-x test_subprocess test_io test_lib2to3 \"
	READELF = "readelf"
	RESSRCDIR = "Mac/Resources/framework"
	RETSIGTYPE = "void"
	RUNSHARED = "LD_LIBRARY_PATH=/usr/src/python"
	SCRIPTDIR = "/usr/local/lib"
	SETPGRP_HAVE_ARG = "0"
	SHELL = "/bin/sh"
	SHLIBS = "-lcrypt -ldl  -lm"
	SHLIB_SUFFIX = ".so"
	SHM_NEEDS_LIBRT = "0"
	SIGNED_RIGHT_SHIFT_ZERO_FILLS = "0"
	SITEPATH = ""
	SIZEOF_DOUBLE = "8"
	SIZEOF_FLOAT = "4"
	SIZEOF_FPOS_T = "16"
	SIZEOF_INT = "4"
	SIZEOF_LONG = "8"
	SIZEOF_LONG_DOUBLE = "16"
	SIZEOF_LONG_LONG = "8"
	SIZEOF_OFF_T = "8"
	SIZEOF_PID_T = "4"
	SIZEOF_PTHREAD_KEY_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-310-x86_64-linux-gnu.so"
	SOABI = "cpython-310-x86_64-linux-gnu"
	SRCDIRS = "Parser Objects Python Modules Modules/_io Programs"
	SRC_GDB_HOOKS = "./Tools/gdb/libpython.py"
	STATIC_LIBPYTHON = "1"
	STDC_HEADERS = "1"
	STRICT_SYSV_CURSES = "/* Don't use ncurses extensions */"
	STRIPFLAG = "-s"
	SUBDIRS = ""
	SUBDIRSTOO = "Include Lib Misc"
	SYSLIBS = "-lm"
	SYS_SELECT_WITH_SYS_TIME = "1"
	TCLTK_INCLUDES = "-I/usr/include/tcl8.6"
	TCLTK_LIBS = "-ltk8.6 -ltkstub8.6 -ltcl8.6 -ltclstub8.6"
	TESTOPTS = ""
	TESTPATH = ""
	TESTPYTHON = "LD_LIBRARY_PATH=/usr/src/python ./python"
	TESTPYTHONOPTS = ""
	TESTRUNNER = "LD_LIBRARY_PATH=/usr/src/python ./python ./Tools/scripts/run_tests.py"
	TESTSUBDIRS = "ctypes/test \"
	TESTTIMEOUT = "1200"
	TEST_MODULES = "yes"
	THREAD_STACK_SIZE = "0"
	TIMEMODULE_LIB = "0"
	TIME_WITH_SYS_TIME = "1"
	TM_IN_SYS_TIME = "0"
	TZPATH = "/usr/share/zoneinfo:/usr/lib/zoneinfo:/usr/share/lib/zoneinfo:/etc/zoneinfo"
	UNICODE_DEPS = "\"
	UNIVERSALSDK = ""
	UPDATE_FILE = "./Tools/scripts/update_file.py"
	USE_COMPUTED_GOTOS = "0"
	VERSION = "3.10"
	WHEEL_PKG_DIR = ""
	WINDOW_HAS_FLAGS = "1"
	WITH_DECIMAL_CONTEXTVAR = "1"
	WITH_DOC_STRINGS = "1"
	WITH_DTRACE = "0"
	WITH_DYLD = "0"
	WITH_EDITLINE = "0"
	WITH_LIBINTL = "0"
	WITH_NEXT_FRAMEWORK = "0"
	WITH_PYMALLOC = "1"
	WITH_VALGRIND = "0"
	X87_DOUBLE_ROUNDING = "0"
	XMLLIBSUBDIRS = "xml xml/dom xml/etree xml/parsers xml/sax"
	abiflags = ""
	abs_builddir = "/usr/src/python"
	abs_srcdir = "/usr/src/python"
	base = "/usr/local"
	datarootdir = "/usr/local/share"
	exec_prefix = "/usr/local"
	installed_base = "/usr/local"
	installed_platbase = "/usr/local"
	platbase = "/usr/local"
	platlibdir = "lib"
	prefix = "/usr/local"
	projectbase = "/usr/local/bin"
	py_version = "3.10.14"
	py_version_nodot = "310"
	py_version_nodot_plat = ""
	py_version_short = "3.10"
	srcdir = "/usr/local/lib/python3.10/config-3.10-x86_64-linux-gnu"
	userbase = "/srinivas/.local"

Example pyproject.toml

[tool.poetry]
name = "test"
version = "0.1.0"
description = ""
authors = ["Your Name <you@example.com>"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.10"
numpy = "1.23"
pandas = "*"


[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"

Poetry Runtime Logs

srinivas@c5a0af2d2be4:~/test$ poetry add pandas
Using version ^2.2.2 for pandas

Updating dependencies
Resolving dependencies... (0.4s)

Because no versions of pandas match >2.2.2,<3.0.0
 and pandas (2.2.2) depends on numpy (>=1.23.2), pandas (>=2.2.2,<3.0.0) requires numpy (>=1.23.2).
So, because test depends on both numpy (1.23) and pandas (^2.2.2), version solving failed.
srinivas@c5a0af2d2be4:~/test$ poetry add pandas@*

[dimbleby]

not a bug, pandas has complicated requirements on numpy and your initial attempt is indeed unsolvable in the way that poetry reports

please close

[sg-s]

i respectfully disagree.

if i do

poetry add pandas

and it doesn't work, but then if i do

poetry add pandas@*

and it does, surely that's a bug? shouldn't poetry add pandas mean "give me any version of pandas"?

furthermore, when i do

srinivas@c5a0af2d2be4:~/test$ poetry add pandas
Using version ^2.2.2 for pandas

and poetry immediately decides to use the latest version of pandas, and doesn't even consider using an older version, surely that's an issue? and if it isn't, why does poetry add pandas@* work?

[sg-s]

AFAIK this behavior isn't documented anywhere

[dimbleby]

that is duplicating #707, and the docs aspect specifically #707 (comment)

please close

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.