起pg的时候报了这么个错 1 2 3 4 5 6 7 8 pg_ctl: another server might be running; trying to start server anyway dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.67.dylib Referenced from: /usr/local/Cellar/postgresql/13.1/bin/postgres Reason: image not……
via https://stackoverflow.com/a/5215028
So I could not find any examples in the SQLAlchemy documentation, but I found these functions:
count() over() label() And I managed to combine them to produce exactly the result I was looking for:
from sqlalchemy import func
query = session.
电脑配置 规格 详细信息 电脑型号 联想小新pro13 2019笔记本电脑 操作系统 11.2 (20D64) 处理器 英……
no build errors tkinter module enabled openssl from homebrew CPython with Framework support 1 2 3 4 5 6 brew install zlib bzip2 tcl-tk openssl py_version="3.6.11" CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include -I$(brew --prefix tcl-tk)/include" \ LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib -L$(brew --prefix tcl-tk)/lib" \ PYTHON_CONFIGURE_OPTS="--with-tcltk-includes='-I/usr/local/opt/tcl-tk/include' --with-tcltk-libs='-L/usr/local/opt/tcl-tk/lib -ltcl8.
I used to write some Python scripts, and some of them crashed when run on earlier version of macOS(<10.15.x).
A typical exception may like this:
1 2 3 4 urllib3.exceptions.MaxRetryError: HTTPSConnectionPool( host='xxx.com', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError(1, '[SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.