Use str.format
:
>>> gender = 'M'
>>> age = 33
>>> "Gender: {}<br /> Age: {}< br />".format(gender, age)
'Gender: M<br /> Age: 33< br />'
or use %
operator:
>>> "Gender: %s<br /> Age: %s< br />" % (gender, age)
'Gender: M<br /> Age: 33< br />'