The is keyword is preferred because checking if the variables refer to the same object is faster than asserting if a variable equals to another object. How to check if the variable is not initialized In other programming languages such as JavaScript, you can also check for NULL when the varia...
Use Capsule for WebP saving #8386 [@homm] Fixed writing multiple StripOffsets to TIFF #8317 [@Yay295] Updated macOS deployment target for PyPy on Intel to 10.15 #8414 [@radarhere] Fix dereference before checking for NULL in ImagingTransformAffine #8398 [@PavlNekrasov] Use transposed size af...
('cfg')) for elem in elems: tag_name = elem.tag[nslen + 2:] if elem.text is None or elem.text == 'NULL': continue node_dict[tag_name] = elem.text current_cfg = node_dict.get('current-cfg-file') if current_cfg is not None: current_cfg = os.path.basename(current_cfg) ...
checking for --with-universal-archs... no checking MACHDEP... linux checking for --without-gcc... no checking for --with-icc... no checking for gcc... no checking for cc... no checking for cl.exe... no configure: error: in `/usr/local/python3/Python-3.5.4': configure: error...
pycrate_asn1c asnproc: fix exlusive value constraint checking Jan 6, 2025 pycrate_asn1dir asn1dir: recompile all ASN.1 modules with Python3, dropping Python2 s… Jan 6, 2025 pycrate_asn1rt asn1rt: fix and enhance the get_proto() method Jul 23, 2024 ...
1defon_item_changed(item):2# If the changed item is not checked,don't bother checking others3ifnot item.checkState():4return56i=078# loop through the items until yougetNone,which9# means you've passed the endofthe list10whilemodel.item(i):11ifnot model.item(i).checkState():12return...
上下文管理器对象存在以控制with语句,就像迭代器存在以控制for语句一样。 with语句旨在简化一些常见的try/finally用法,它保证在代码块结束后执行某些操作,即使代码块由return、异常或sys.exit()调用终止。finally子句中的代码通常释放关键资源或恢复一些临时更改的先前状态。
$is_emulated=$env:EMULATED-eq"true"$is_python2=$env:PYTHON2-eq"on"$nl= [Environment]::NewLineif(-not$is_emulated){Write-Output"Checking if requirements.txt exists$nl"if(Test-Path..\requirements.txt) {Write-Output"Found. Processing pip$nl"if($is_python2) { &"${env:SystemDrive}\Py...
[Net.ServicePointManager]::SecurityProtocol ="tls12, tls11, tls"$is_emulated=$env:EMULATED-eq"true"$is_python2=$env:PYTHON2-eq"on"$nl= [Environment]::NewLineif(-not$is_emulated){Write-Output"Checking if Python is installed...$nl"if($is_python2) { &"${env:SystemDrive}\Python27\py...
}/* Compile a sequence of statements, checking for a docstring and for annotations. */staticintcompiler_body(structcompiler *c, asdl_seq *stmts){inti =0; stmt_ty st;/* Set current line number to the line number of first statement. ...