我尝试了pip3 install psycopg2
遇到这些错误，无法理解我需要做什么。
请帮助。
Collecting psycopg2==2.7.3.1 Using cached https://files.pythonhosted.org/packages/6b/fb/15c687eda2f925f0ff59373063fdb408471b4284714a7761daaa65c01f15/psycopg2-2.7.3.1.tar.gz Installing collected packages: psycopg2
Running setup.py install for psycopg2: started
Running setup.py install for psycopg2: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /Users/amolchakane/Desktop/Projects/kisanoauth/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pycharm-packaging/psycopg2/setup.py'"'"';
__file__='"'"'/private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pycharm-packaging/psycopg2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pip-record-f050z4mz/install-record.txt
--single-version-externally-managed --compile --install-headers /Users/amolchakane/Desktop/Projects/kisanoauth/venv/include/site/python3.7/psycopg2
cwd: /private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pycharm-packaging/psycopg2/
Complete output (61 lines):
running install
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/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/__init__.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2
copying lib/psycopg1.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/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
creating build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_transaction.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/dbapi20.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_extras_dictcursor.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_with.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_types_basic.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_bug_gc.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_module.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_psycopg2_dbapi20.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_async.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_dates.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_async_keyword.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/testutils.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_connection.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_copy.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_bugX000.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/__init__.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_cursor.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_types_extras.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_sql.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_fast_executemany.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_green.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_ipaddress.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_cancel.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_quote.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/testconfig.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_errcodes.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_replication.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_lobject.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/test_notify.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
copying tests/dbapi20_tpc.py -> build/lib.macosx-10.9-x86_64-3.7/psycopg2/tests
Skipping optional fixer: buffer
Skipping optional fixer: idioms
Skipping optional fixer: set_literal
Skipping optional fixer: ws_comma
warning: build_py: byte-compiling is disabled, skipping.
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_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.7.3.1 (dt dec pq3 ext lo64)" -DPG_VERSION_NUM=110500 -DHAVE_LO64=1
-I/Users/amolchakane/Desktop/Projects/kisanoauth/venv/include -I/Library/Frameworks/Python.framework/Versions/3.7/include/python3.7m -I. -I/usr/local/Cellar/postgresql/11.5_1/include -I/usr/local/Cellar/postgresql/11.5_1/include/server -c psycopg/psycopgmodule.c -o build/temp.macosx-10.9-x86_64-3.7/psycopg/psycopgmodule.o
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
error: command 'gcc' failed with exit status 1
---------------------------------------- ERROR: Command errored out with exit status 1: /Users/amolchakane/Desktop/Projects/kisanoauth/venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pycharm-packaging/psycopg2/setup.py'"'"';
__file__='"'"'/private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pycharm-packaging/psycopg2/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/c7/wshj0hq9637_ddn00y_52y7c0000gp/T/pip-record-f050z4mz/install-record.txt
--single-version-externally-managed --compile --install-headers /Users/amolchakane/Desktop/Projects/kisanoauth/venv/include/site/python3.7/psycopg2 Check the logs for full command output.
答案 0 :(得分：2)
如果您是Django的新手（就像我一样），则可以尝试使用psycopg2-binary。它仅用于开发人员和测试，而不用于生产。我在Mac OS Mojave的虚拟环境中使用的是同一版本的Python（3.7）和Django 2.2.6。我也无法在系统上安装pyscopg2。
pip安装pyscopg2-binary
这些是我用来帮助我弄清楚的文档：http://initd.org/psycopg/docs/install.html#install-from-source https://pypi.org/project/psycopg2-binary/
答案 1 :(得分：1)
我可以通过安装上面的注释中指示的二进制库来解决此问题。 （它只是有一个拼写错误）
pip install psycopg2-binary
Amol Chakane的错误是指PIP错误，是指由于拼写错误而未找到的软件包。
还要确保您的pip命令引用的是正确的Python版本。就我而言，我使用的是Python 3环境，不需要指定pip3，而只需指定pip