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格式错误python 3.6

python-3.6 string python

-1

Andres Urrego Angel · 技术社区 · 7 年前

message = """
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
<style>
    body {
    !background-color: #ffffcc;
    font-family:courier;
    font-size: 120%
}
</style>
<div>
    <h2 style="text-decoration:underline">Alert process failure</h2>
    <p> The process <b>{{ }}</b> has failure in the method <b>{{ }}</b> due the error <b>{{ }}</b>. Please take a look the system log and take the required 
        actions in order to solve the problem ASAP and communicate the end users.</p>

</div>
</body>
</html>
"""

print(message.format('1','2','2'))

我打印的错误是:

ValueError:转换说明符后应为“:”

尽管我有一个疑问 {{ 和 }} 就像其他职位一样。代码无法通过

谢谢你的帮助! 澳大利亚

3 回复 | 直到 7 年前

William D. Irons 7 年前

要替换的值的位置{}

要保留{{或}的文字{或}

然后用}}而不是}关闭它。

然后在每个要替换为值的地方使用{}消息.格式()

message = """
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
<style>
    body {{
    !background-color: #ffffcc;
    font-family:courier;
    font-size: 120%
}}
</style>
<div>
    <h2 style="text-decoration:underline">Alert process failure</h2>
    <p> The process <b>{}</b> has failure in the method <b>{}</b> due the error <br>{}</b>. Please take a look the system log and take the required
        actions in order to solve the problem ASAP and communicate the end users.</p>

</div>
</body>
</html>
"""

print(message.format('1','2','2'))

Andres Urrego Angel 7 年前

非常感谢你们的反馈。事实上,我是这么想的;

from string import Template

message = Template("""
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
<style>
    body {
    !background-color: #ffffcc;
    font-family:courier;
    font-size: 120%
}
</style>
<div>
    <h2 style="text-decoration:underline">BI Alert process failure</h2>
    <p> The process <b> $fname </b> has failure in the method <b> $method </b> due the error <b> $error </b>. Please take a look the system log and take the required 
        actions in order to solve the problem ASAP and communicate the end users.</p>

</div>
<div style="text-decoration:underline">
    <p> For more information contact to <b>BI</b> team.</p>
    <img src="https://s3.amazonaws.com/gp-process/etl-deployment/chronos/medias/logo.png"
    width="100" height="100">
</div>
</body>
</html>
""")

print(message.substitute(fname = 'hello',method='two',error='hi'))

**方案2**

message = """
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
<style>
    body {{
    !background-color: #ffffcc;
    font-family:courier;
    font-size: 120%
}}
</style>
<div>
    <h2 style="text-decoration:underline">BI Alert process failure</h2>
    <p> The process <b> $fname </b> has failure in the method <b> $method </b> due the error <b> $error </b>. Please take a look the system log and take the required 
        actions in order to solve the problem ASAP and communicate the end users.</p>

</div>
<div style="text-decoration:underline">
    <p> For more information contact to <b>BI</b> team.</p>
    <img src="https://s3.amazonaws.com/gp-process/etl-deployment/chronos/medias/logo.png"
    width="100" height="100">
</div>
</body>
</html>
"""

print(message.format('1','2','3'))

谢谢

Mark Tolonen 7 年前

自从你贴了标签 python-3.6 ,查看 f-strings ( PEP 498 ). 下面是一个简单的例子,其中有一些嵌入的花括号。插入变量值。 Formatting 也可以应用于:

>>> a,b,c = 1,2,3
>>> print(f'{{a={a} b={b} c={c:02}}}')
{a=1 b=2 c=03}

您的解决方案:

def do_error(fname,message,error):
    print(f'''
    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
    </head>
    <body>
    <style>
        body {{
        !background-color: #ffffcc;
        font-family:courier;
        font-size: 120%
    }}
    </style>
    <div>
        <h2 style="text-decoration:underline">Alert process failure</h2>
        <p> The process <b>{fname}</b> has failure in the method <b>{message}</b> due the error <b>{error}</b>. Please take a look the system log and take the required 
            actions in order to solve the problem ASAP and communicate the end users.</p>
    </div>
    </body>
    </html>
    ''')

do_error('FNAME','MESSAGE','ERROR')

输出:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
<style>
    body {
    !background-color: #ffffcc;
    font-family:courier;
    font-size: 120%
}
</style>
<div>
    <h2 style="text-decoration:underline">Alert process failure</h2>
    <p> The process <b>FNAME</b> has failure in the method <b>MESSAGE</b> due the error <b>ERROR</b>. Please take a look the system log and take the required 
        actions in order to solve the problem ASAP and communicate the end users.</p>
</div>
</body>
</html>