Python 3.7 psycopg2-Xcode Error "error：command 'gcc' failed with exit status 1"

Question

現在PyCharmを使用して取り組んでいるPython/Kivyプロジェクトの場合、postgreSQLデータベースを設定しました。端末を使用してpsycopg2アダプターをインストールしようとすると、$ pip install psycopg2エラー「エラー：コマンド 'gcc'が終了ステータス1で失敗しました」が発生します。これまでに機能した唯一のものは、PyPIからバイナリをインストールすることでした$ pip install psycopg2-binary。 PyCharmでプロジェクトを実行する場合、インターコプターにpsycopg2とpsycopg2-binaryを追加できるため、問題なく動作します。しかし、Xcodeでプロジェクトを実行してiPhoneシミュレーターでプロジェクトを機能させようとすると、アプリがエラーno module 'psycopg2'（でクラッシュしますmain.py：psycopg2をインポートします）。したがって、psycopg2をインストールする方法を見つける必要があります。 githubのソースコードを使用する：

$ python setup.py build $ python setup.py install

問題は修正されませんでした-それでも「gcc」問題に直面しています。

 Collecting psycopg2 Using cached https://files.pythonhosted.org/packages/84/d7/6a93c99b5ba4d4d22daa3928b983cec66df4536ca50b22ce5dcac65e4e71/psycopg2-2.8.4.tar.gz Building wheels for collected packages: psycopg2 Building wheel for psycopg2 (setup.py) ... error ERROR: Command errored out with exit status 1: command: /Library/Frameworks/Python.framework/Versions/3.7/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/w6/mf79vk4n44z1p613hhv_lvmh0000gn/T/pip-install-nv_3vphc/psycopg2/setup.py'"'"'; __file__='"'"'/private/var/folders/w6/mf79vk4n44z1p613hhv_lvmh0000gn/T/pip-install-nv_3vphc/psycopg2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'
'"'"', '"'"'
'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/w6/mf79vk4n44z1p613hhv_lvmh0000gn/T/pip-wheel-6js4c4d0 --python-tag cp37 cwd: /private/var/folders/w6/mf79vk4n44z1p613hhv_lvmh0000gn/T/pip-install-nv_3vphc/psycopg2/ Complete output (144 lines): running bdist_wheel running build running build_py creating build creating build/lib.macosx-10.9-x86_64-3.7 creating build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/_json.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/extras.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/compat.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/errorcodes.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/tz.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/_range.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/_ipaddress.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/_lru_cache.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/__init__.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/extensions.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/errors.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/sql.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 copying lib/pool.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2 running build_ext building 'psycopg2._psycopg' extension creating build/temp.macosx-10.9-x86_64-3.7 creating build/temp.macosx-10.9-x86_64-3.7/psycopg gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/psycopgmodule.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/psycopgmodule.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/green.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/green.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/pqpath.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/pqpath.o psycopg/pqpath.c:135:17: warning: implicit conversion from enumeration type 'ConnStatusType' to different enumeration type 'ExecStatusType' [-Wenum-conversion] PQstatus(conn->pgconn) : PQresultStatus(*pgres))); ^~~~~~~~~~~~~~~~~~~~~~ psycopg/pqpath.c:1714:11: warning: code will never be executed [-Wunreachable-code] ret = 1; ^ psycopg/pqpath.c:1819:17: warning: implicit conversion from enumeration type 'ConnStatusType' to different enumeration type 'ExecStatusType' [-Wenum-conversion] PQstatus(curs->conn->pgconn) : PQresultStatus(curs->pgres))); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ 3 warnings generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/utils.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/utils.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/bytes_format.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/bytes_format.o In file included from psycopg/bytes_format.c:81: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/libpq_support.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/libpq_support.o In file included from psycopg/libpq_support.c:29: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/win32_support.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/win32_support.o In file included from psycopg/win32_support.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/solaris_support.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/solaris_support.o In file included from psycopg/solaris_support.c:28: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/connection_int.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/connection_int.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/connection_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/connection_type.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/cursor_int.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/cursor_int.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/cursor_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/cursor_type.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/column_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/column_type.o In file included from psycopg/column_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/replication_connection_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/replication_connection_type.o In file included from psycopg/replication_connection_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/replication_cursor_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/replication_cursor_type.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/replication_message_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/replication_message_type.o In file included from psycopg/replication_message_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/diagnostics_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/diagnostics_type.o In file included from psycopg/diagnostics_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/error_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/error_type.o In file included from psycopg/error_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/conninfo_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/conninfo_type.o In file included from psycopg/conninfo_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/lobject_int.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/lobject_int.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/lobject_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/lobject_type.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/notify_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/notify_type.o In file included from psycopg/notify_type.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/xid_type.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/xid_type.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_asis.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_asis.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_binary.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_binary.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_datetime.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_datetime.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_list.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_list.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_pboolean.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pboolean.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_pdecimal.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pdecimal.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_pint.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pint.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_pfloat.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pfloat.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/adapter_qstring.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_qstring.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/microprotocols.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/microprotocols.o gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/microprotocols_proto.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/microprotocols_proto.o In file included from psycopg/microprotocols_proto.c:27: In file included from ./psycopg/psycopg.h:37: ./psycopg/config.h:81:13: warning: unused function 'Dprintf' [-Wunused-function] static void Dprintf(const char *fmt, ...) {} ^ 1 warning generated. gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Arch x86_64 -g -DPSYCOPG_VERSION=2.8.4 (dt dec pq3 ext lo64) -DPG_VERSION_NUM=120001 -DHAVE_LO64=1 -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/include -I/usr/local/include/postgresql/server -c psycopg/typecast.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/typecast.o gcc -bundle -undefined dynamic_lookup -Arch x86_64 -g build/temp.macosx-10.9-x86_64-3.7/psycopg/psycopgmodule.o build/temp.macosx-10.9-x86_64-3.7/psycopg/green.o build/temp.macosx-10.9-x86_64-3.7/psycopg/pqpath.o build/temp.macosx-10.9-x86_64-3.7/psycopg/utils.o build/temp.macosx-10.9-x86_64-3.7/psycopg/bytes_format.o build/temp.macosx-10.9-x86_64-3.7/psycopg/libpq_support.o build/temp.macosx-10.9-x86_64-3.7/psycopg/win32_support.o build/temp.macosx-10.9-x86_64-3.7/psycopg/solaris_support.o build/temp.macosx-10.9-x86_64-3.7/psycopg/connection_int.o build/temp.macosx-10.9-x86_64-3.7/psycopg/connection_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/cursor_int.o build/temp.macosx-10.9-x86_64-3.7/psycopg/cursor_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/column_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/replication_connection_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/replication_cursor_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/replication_message_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/diagnostics_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/error_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/conninfo_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/lobject_int.o build/temp.macosx-10.9-x86_64-3.7/psycopg/lobject_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/notify_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/xid_type.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_asis.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_binary.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_datetime.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_list.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pboolean.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pdecimal.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pint.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_pfloat.o build/temp.macosx-10.9-x86_64-3.7/psycopg/adapter_qstring.o build/temp.macosx-10.9-x86_64-3.7/psycopg/microprotocols.o build/temp.macosx-10.9-x86_64-3.7/psycopg/microprotocols_proto.o build/temp.macosx-10.9-x86_64-3.7/psycopg/typecast.o -L/usr/local/lib -lpq -lssl -lcrypto -o build/lib.macosx-10.9-x86_64-3.7/psycopg2/_psycopg.cpython-37m-darwin.so ld: library not found for -lssl clang: error: linker command failed with exit code 1 (use -v to see invocation) error: command 'gcc' failed with exit status 1 ---------------------------------------- ERROR: Failed building wheel for psycopg2

私はいくつかのアプローチを使用して問題を修正しようとしました（さらにいくつかの、しかしこれらのリンクは私が見つけることができる主なアプローチを提供しています）：

私が使用しています：macOS Catalina 10.15.2/Python 3.7.5/postgres（PostgreSQL）12.1

私はこれらすべてに非常に慣れていないので、アイデアはほとんどありません。後で電話でプロジェクトを実行したいので、psycopg2-binaryを使用するだけでは満足のいく解決策にはなりません。ありがとうございました！

Lachlan Etherton · Answer

MacOS Mojave 10.14.6（18G2022）でも同じ問題が発生しました。

コマンドを使用してgccをインストールしました。brew install gcc。

次に、ターミナルで次のように入力しました。

Sudo rm -rf /Library/Developer/CommandLineTools xcode-select --install cd /Library/Developer/CommandLineTools/Packages/ open macOS_SDK_headers_for_macOS_10.14.pkg

出典： this Webサイトの下部。

また、psycopg2をインストールするときに、私はpip3 install psycopg2、それ以外の場合は、Python 2.7.x.（ Source ）でインストールされていました。