我的结果被截断为一行。我如何让它打印所有内容？

Question

这是我的代码： '

导入pyodbc 将 pandas 导入为 pd 从烧瓶导入烧瓶，请求，render_template

app = Flask(__name__)


@app.route('/')
def attendance_fetch():
    return render_template('Attendance_fetch.html')


@app.route('/Attendance', methods=['GET', 'POST'])
def database_file():
    df = 0
    if request.method == 'POST':

        employee = request.form['employee_code']

        conn = pyodbc.connect(
            r'Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=file_location;')
        cursor = conn.cursor()
        cursor.execute('select * from Employees where EmployeeCode =?', employee)

        for i in cursor.fetchall():
            employee_id = str(i[0])
            cursor.execute('select EmployeeID, AttendanceDate, InTime, OutTime, TotalDurationinHHMM'
                           ' from AttendanceLogs where EmployeeId=?', employee_id)
            columns = [column[0] for column in cursor.description]
            print(columns)
            results = []
            for row in cursor.fetchall():
                results.append(dict(zip(columns, row)))
            for result in results:
                final = [result]
                df = pd.DataFrame(final)

            return render_template('Testrun2.html', tables=[df.to_html(classes='data')], 
            titles=df.columns.values)

        cursor.close()
        conn.close()


if __name__ == '__main__':
    app.run(debug=True)

'

然后我写了一个 html 文件来捕获它：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Attendance Table</title>
</head>
<body>

{% for table in tables %}
            {{titles[loop.index]}}
            {{ table|safe }}
{% endfor %}
</body>
</html>

But the result is just a singular truncated column: 我想打印每一行结果。提前致谢。

Answer 1

问题出在：

 for result in results:
            final = [result]
            df = pd.DataFrame(final)

您在每个循环中覆盖了您的 df，包含一个结果。将 df 放在循环外并尝试它是否有效。

我的结果被截断为一行。我如何让它打印所有内容？

My results are truncating into a single row. How do I get it to print everything?

python

pyodbc

flask

pandas