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我正在尝试在我的 Windows 中使用 Scrapy-Playwright，但我收到了TypeError: ProactorEventLoop is not supported, got: <ProactorEventLoop running=False closed=False debug=False这个错误。背后的原因是什么？

import scrapy
from scrapy_playwright.page import PageCoroutine
import playwright


class PlaySpider(scrapy.Spider):
    name = 'play'


    def start_requests(self):
        yield scrapy.Request(
            url="https://quotes.toscrape.com/js",
            meta= dict(
                playwright= True,
                playwright_include_page= True,
                playwright_page_coroutines= [
                    PageCoroutine('wait_for_selector', 'div.quote')
                    ]
        ))

    async def parse(self, response):
        text = response.xpath("//div[@class='quote']/span/text()")
        yield {
            'Quotes': text.get()
        }

我遇到了分段错误我不明白的方式

我的任务是创建一个编译器，我现在在这里列出了两个产生问题的函数。下面我给出了当我连续调用 cond3AC 函数时它给出的输出

s_3AC * e1 = cond3AC (tree-> childrens [0]);

我得到分段错误

如果您尝试跟踪打印，我会正确分配并正确返回所有内容。

s_3AC* Exp3AC(node *tree){
     if(!strcmp("&&", tree->token) || !strcmp("||", tree->token) || !strcmp("==", tree->token) || !strcmp("!=", tree->token)|| 
        !strcmp(">", tree->token) || !strcmp(">=", tree->token) || !strcmp("<", tree->token) || !strcmp("<=", tree->token)){           
        red();
        printf("######## check now the e2 ########## \n");
        printf("check token right: %s\n",tree->childrens[1]->token);
        s_3AC* e2 = cond3AC(tree->childrens[1]);
        printf("e2 -> %s\n", e2->code);

        purple();
        printf("######## check now the e1 ########## %s\n", tree->childrens[0]->token);
        printf("check token left: %s\n",tree->childrens[0]->token);
        /* send left side to evaluate*/
        s_3AC* e1 = cond3AC(tree->childrens[0]);
        printf("e1 -> %s", e1->code); 
        reset();
        s_3AC* node = (s_3AC*)malloc(sizeof(s_3AC) * 1);
        node->code = (char*)malloc(sizeof(char) * (strlen(tree->token) + strlen(e1->code) + strlen(e2->code) + 1));
        strcat(node->code,e1->code);
        strcat(node->code,tree->token);
        strcat(node->code,e2->code);

        node->var = NULL;
        node->falsel = NULL;
        node->truel = NULL;
        return node;

    }else{
        s_3AC* node = (s_3AC*)malloc(sizeof(s_3AC));
        printf("SUCCESS\n");
        node->code = strdup(tree->token);
        node->var = strdup(tree->token);
        node->truel = NULL;
        node->falsel = NULL;

    return node;
}

s_3AC* cond3AC(node *tree){
    printf("OKOKOK\n");
    printf("tree->token: %s\n",tree->token);
    if(is_kind_of_type(tree->token)){
        char *code = (char*)malloc(sizeof(char) * (strlen(tree->childrens[0]->token) + 1));
         printf("tree->token after the if: %s\n",tree->token);
        strcat(code, tree->childrens[0]->token);

        s_3AC* node = (s_3AC*)malloc(sizeof(s_3AC) * 1);
        node->code = strdup(code);
        node->var = NULL;
        node->truel = NULL;
        node->falsel = NULL;
        return node;
    }
    s_3AC* check = Exp3AC(tree);
    printf("ˆˆˆˆcheck->codeˆˆˆˆ: %s\n", check->code);
    return check;
}

输出：

    ######## check now the e2 ########## 
check token right: int
OKOKOK
tree->token: int
tree->token after the if: int
e2 -> 23
######## check now the e1 ########## a
check token left: a
OKOKOK
tree->token: a
SUCCESS
ˆˆˆˆcheck->codeˆˆˆˆ: a
zsh: segmentation fault  ./Part3 < test.t
4

0 回答 0