Python TypeError:无法在我的邮件正文部分连接“str"和“list"对象 [英] Python TypeError: cannot concatenate 'str' and 'list' objects in my email body part of message

问题描述

我试图在电子邮件正文部分的电子邮件代码中发送一些数据.我正在调用一个返回字符串的函数，我正在调用另一个返回列表的函数.我想将这些包含在邮件的电子邮件正文部分中.我收到错误 TypeError: cannot concatenate 'str' and 'list' objects:

I am trying to send some data in my email code in the body part of the email message. I am calling a function which returns a string and I am calling another function which returns a list. I would like to include these into the email body part of the message. I am getting the error TypeError: cannot concatenate 'str' and 'list' objects:

    Traceback (most recent call last):
  File "E:/test_runners 2 edit project in progress add more tests/selenium_regression_test_5_1_1/Email/email_selenium_report.py", line 32, in <module>
    report.send_report_summary_from_htmltestrunner_selenium_report2()
  File "E:\test_runners 2 edit project in progress add more tests\selenium_regression_test_5_1_1\Email\report.py", line 520, in send_report_summary_from_htmltestrunner_selenium_report2
    extract_testcases_from_report_htmltestrunner()) + "\n Report location = : \\storage-1\Testing\Selenium_Test_Report_Results\ClearCore_5_1_1\Selenium VM\IE11 \n")
TypeError: cannot concatenate 'str' and 'list' objects

我的电子邮件代码中邮件正文部分所在的行:

The line in my email code where the message body part is:

msg = MIMEText("\n ClearCore 5_1_1 Automated GUI Test_IE11_Selenium_VM   \n " + extract_only_header_from_summary_from_report_htmltestrunner() + "\n extract_header_count__from_summary_from_report_htmltestrunner() \n" + list(
      extract_testcases_from_report_htmltestrunner()) + "\n Report location = : \\storage-1\Testing\Selenium_Test_Report_Results\ClearCore_5_1_1\Selenium VM\IE11 \n")

我的电子邮件代码是:

from email.mime.text import MIMEText
def send_report_summary_from_htmltestrunner_selenium_report2():
    print extract_only_header_from_summary_from_report_htmltestrunner()
    print extract_header_count__from_summary_from_report_htmltestrunner()
    all_testcases = list(extract_testcases_from_report_htmltestrunner())
    # print all_data
    pprint.pprint(all_testcases)
    msg = MIMEText("\n ClearCore 5_1_1 Automated GUI Test_IE11_Selenium_VM   \n " + extract_only_header_from_summary_from_report_htmltestrunner() + "\n extract_header_count__from_summary_from_report_htmltestrunner() \n" + list(
          extract_testcases_from_report_htmltestrunner()) + "\n Report location = : \\storage-1\Testing\Selenium_Test_Report_Results\ClearCore_5_1_1\Selenium VM\IE11 \n")

    msg['Subject'] = "ClearCore 5_1_1 Automated GUI Test"
    msg['to'] = "[e-mail]"
    msg['From'] = "[e-mail]"

    s = smtplib.SMTP()
    s.connect(host=SMTP_SERVER)
    s.sendmail(msg['From'], msg['To'], msg.as_string())
    s.close()

返回列表的函数是:

def extract_testcases_from_report_htmltestrunner():
    filename = (r"E:\test_runners 2 edit project\selenium_regression_test_5_1_1\TestReport\ClearCore501_Automated_GUI_TestReport.html")
    html_report_part = open(filename,'r')
    soup = BeautifulSoup(html_report_part, "html.parser")
    for div in soup.select("#result_table tr div.testcase"):
          yield div.text.strip().encode('utf-8'), div.find_next("a").text.strip().encode('utf-8')

我正在调用的其他两个返回字符串的函数是:

The other 2 functions which I am calling which returns a string are:

def extract_only_header_from_summary_from_report_htmltestrunner():
    filename = (r"E:\test_runners 2 edit project\selenium_regression_test_5_1_1\TestReport\ClearCore501_Automated_GUI_TestReport.html")
    html_report_part = open(filename,'r')
    soup = BeautifulSoup(html_report_part, "html.parser")
    table = soup.select_one("#result_table")

    #Create list here...
    results = []

    headers = [td.text for td in table.select_one("#header_row").find_all("td")[1:-1]]
#    print(" ".join(headers))

    #Don't forget to append header (if you want)
    results.append(headers)
    return results


def extract_header_count__from_summary_from_report_htmltestrunner():
    filename = (r"E:\test_runners 2 edit project\selenium_regression_test_5_1_1\TestReport\ClearCore501_Automated_GUI_TestReport.html")
    html_report_part = open(filename,'r')
    soup = BeautifulSoup(html_report_part, "html.parser")
    table = soup.select_one("#result_table")

    #Create list here...
    results = []
    for row in table.select("tr.passClass"):
        #Store row string in variable and append before printing
        row_str = " ".join([td.text for td in row.find_all("td")[1:-1]])
        results.append(row_str)
#        print(row_str)

    return results

如何将来自这些函数的数据包含在电子邮件的正文部分中?我试图连接它，但没有奏效，因为它说你不能连接字符串和列表.

How can I include the data from these functions into the body part of the email message? I tried to concatenate it but that did not work because it says you cannot concatenate string and a list.

谢谢，里亚兹

推荐答案

msg = MIMEText("\n ClearCore 5_1_1 Automated GUI Test_IE11_Selenium_VM   \n " + extract_only_header_from_summary_from_report_htmltestrunner() + "\n extract_header_count__from_summary_from_report_htmltestrunner() \n" + list(
      extract_testcases_from_report_htmltestrunner()) + "\n Report location = : \\storage-1\Testing\Selenium_Test_Report_Results\ClearCore_5_1_1\Selenium VM\IE11 \n")

您明确地尝试连接一个列表和字符串，这是不可能的.

You are explicitly trying to concat a list and strings which is impossible.

EDIT ALL 你的函数返回一个列表而不是字符串.

EDIT ALL of your functions return a list instead of strings.

如果您的预期结果是一个字符串，您可以使用 '\n'.join 将列表转换为在每个元素之间带有 '\n' 的字符串列表:

If your expected outcome is a string you can use '\n'.join to turn the list to a string with '\n' between every element in the list:

msg = MIMEText("\n ClearCore 5_1_1 Automated GUI Test_IE11_Selenium_VM   \n " + 
               '\n'.join(extract_only_header_from_summary_from_report_htmltestrunner()) +
               '\n'.join(extract_header_count__from_summary_from_report_htmltestrunner()) +   
               '\n'.join(extract_testcases_from_report_htmltestrunner()) + 
               "\n Report location = : \\storage-1\Testing\Selenium_Test_Report_Results\ClearCore_5_1_1\Selenium VM\IE11 \n")

我可能在格式化时丢失了一些 '\n'，如果需要，应该重新添加它们.

I might have lost some '\n' when formatting, you should add them back if you require them.

例如，如果您将函数的返回值更改为字符串，而不是在调用内部转换为MIMEText，那么它也会更具可读性

It will also be a bit more readable if you change the return values of the function to strings instead of converting inside the call to MIMEText, for example

def extract_only_header_from_summary_from_report_htmltestrunner():
    filename = (r"E:\test_runners 2 edit project\selenium_regression_test_5_1_1\TestReport\ClearCore501_Automated_GUI_TestReport.html")
    html_report_part = open(filename,'r')
    soup = BeautifulSoup(html_report_part, "html.parser")
    table = soup.select_one("#result_table")

    results = []

    headers = [td.text for td in table.select_one("#header_row").find_all("td")[1:-1]]

    results.append(headers)

    # Use whatever character you want as a "separator" instead of '\n'
    return '\n'.join(results)

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