Could not find a version that satisfies the requirement 安装包名字(from versions: ) No matching distribution found for 安装包名字 在Python编程和包管理的日常工作中,使用pip工具安装软件包时,我们有时会遇到一个常见的错误提示:“ERROR: Could not find a version that satisfies the requirement”。这个错误...
作用:与 find() 函数一样,区别在于如果str不在mystr中会报一个异常 rindex mystr.rindex( str, start=0,end=len(mystr)) 1. 作用:类似于 index() 函数,区别在于从右边开始 三、 count mystr.count(str, start=0, end=len(mystr)) 1. 作用:返回 str在start和end之间 在 mystr里面出现的次数 四、...
usage: findpython [-h] [-V] [-a] [--resolve-symlink] [-v] [--no-same-file] [--no-same-python] [--providers PROVIDERS] [version_spec] A utility to find python versions on your system positional arguments: version_spec Python version spec or name options: -h, --help show this ...
It is also now a fully standalone package, so you can more easily use it with whatever libraries you have for analysing market data or doing your backtesting (although I'd recommend my own finmarketpy package if you are doing backtesting of trading strategies!). A few things to note: ...
镜像安装Python出现Could not find a version that satisfies the requirement openpyxl (from versions: ),程序员大本营,技术文章内容聚合第一站。
python3.8使用pip安装mysqldb报错--ERROR: Could not find a version that satisfies the requirement MySQLdb,程序员大本营,技术文章内容聚合第一站。
Recently I installed pycharm on my windows 7 32-bit pc(2gb ram). After successfull installation, it doesn't open and shows this error "could not find main class com/intellij/idea/main". I tired running pycharm.exe file and it shows the same error.. I ...
Version:2.2.3OS:CentOS (7) Assigned to:CPU Architecture:Any [28 Mar 2017 8:30] Shahriyar Rzayev Description:Trying setup my project but failed as: Searching for mysql-connector>=2.0.2 Readinghttps://pypi.python.org/simple/mysql-connector/Downloadinghttps://pypi.python.org/packages/e8/b4/b...
Find the installation directory of Python on your system. The default installation directory for Python 3 on Windows is usuallyC:\Python39(the version number may vary). Open the System Properties dialog by right-clicking on “This PC” or “My Computer,” selecting “Properties,” and then cl...
High-throughput RNA-sequencing (RNA-seq) technologies provide an unprecedented opportunity to explore the individual transcriptome. Unmapped reads are a large and often overlooked output of standard RNA-seq analyses. Here, we present Read Origin Protocol