python 在线编译器

import os, sys, subprocess, time


class AdvanceQuery(object):
    def __init__(self):
        self.TempFile = "media/advance_query"
        # 文件名
        self.FileNum = int(time.time() * 1000)
        # python编译器位置
        self.EXEC = sys.executable

    # 获取python版本
    def get_version(self):
        v = sys.version_info
        version = "python %s.%s" % (v.major, v.minor)
        return version

    # 获得py文件名
    def get_pyname(self):
        return '%d' % self.FileNum

    # 接收代码写入文件
    def write_file(self, pyname, code):
        if not os.path.exists(self.TempFile):
            os.mkdir(self.TempFile)
        fpath = os.path.join(self.TempFile, '%s.py' % pyname)
        with open(fpath, 'w', encoding='utf-8') as f:
            f.write(code)
        # print('file path: %s' % fpath)
        return fpath

    # 编码
    def decode(self, s):
        try:
            return s.decode('utf-8')
        except UnicodeDecodeError:
            return s.decode('gbk')

    def query_main(self, code):
        r = dict()
        r["version"] = self.get_version()
        pyname = self.get_pyname()
        fpath = self.write_file(pyname, code)
        try:
            # subprocess.check_output 是 父进程等待子进程完成，返回子进程向标准输出的输出结果
            # stderr是标准输出的类型
            """subprocess.check_output(args, *, stdin=None, stderr=None, shell=False, universal_newlines=False)
            父进程直接创建子进程执行程序，以字符串的形式返回子进程的输出。"""
            outdata = self.decode(subprocess.check_output([self.EXEC, fpath], stderr=subprocess.STDOUT, timeout=5))
        except subprocess.CalledProcessError as e:
            # e.output是错误信息标准输出
            # 错误返回的数据
            r["code"] = 'Error'
            r["output"] = self.decode(e.output)
            return r
        else:
            # 成功返回的数据
            r['output'] = outdata
            r["code"] = "Success"
            return r
        finally:
            # 删除文件(其实不用删除临时文件会自动删除)
            try:
                os.remove(fpath)
            except Exception as e:
                exit(1)

    # 显示csv列表
    def csv_list(self):
        path = os.getcwd()
        alist = []
        for i in os.listdir(os.path.join(path, "csv")):
            # print(os.path.join(path, "csv"))
            if i.split(".")[1] == "csv":
                alist.append(i)
        data = {"csv_list": alist}
        return data

    # 根据csv返回相应语句显示
    def show_statement(self, st):
        if st:
            data = 'import pandas as pd\ndp = pd.read_csv("csv/%s")' % st
            return data