FileNotFoundError: [WinError 2] 系统找不到指定的文件。

pyspark demo程序创建spark上下文 完整报错如下：

sc = SparkContext(“local”, “Partition ID Example”) File
“C:\ProgramData\anaconda3\envs\python36\lib\site-packages\pyspark\context.py”,
line 133, in init SparkContext._ensure_initialized(self,
gateway=gateway, conf=conf) File
“C:\ProgramData\anaconda3\envs\python36\lib\site-packages\pyspark\context.py”,
line 316, in _ensure_initialized SparkContext._gateway = gateway or
launch_gateway(conf) File
“C:\ProgramData\anaconda3\envs\python36\lib\site-packages\pyspark\java_gateway.py”,
line 46, in launch_gateway return _launch_gateway(conf) File
“C:\ProgramData\anaconda3\envs\python36\lib\site-packages\pyspark\java_gateway.py”,
line 101, in _launch_gateway proc = Popen(command, stdin=PIPE,
env=env) File
“C:\ProgramData\anaconda3\envs\python36\lib\subprocess.py”, line 729,
in init restore_signals, start_new_session) File
“C:\ProgramData\anaconda3\envs\python36\lib\subprocess.py”, line 1017,
in _execute_child startupinfo) FileNotFoundError: [WinError 2]
系统找不到指定的文件。

环境：python3.6+pyspark==2.4.5
使用的是anaconda创建出的环境。

解决方案：将anaconda的安装路径放系统环境变量PATH中。

现象：在conda命令行窗口conda activate环境后，cd到py文件所在目录，执行python .py可以正常运行，而且到pyspark所在包bin下执行pyspark.cmd 正常。 可在pycharm中执行却报如上错，那只能说明两个环境不一致，尝试了上述解决方案后成功。