title: 'not defined' error in my code kindly assist
body: <p>this is my second week coding and I keep getting an error on my code, any assistance will greatly be appreciated.</p>
  
  <pre><code>name1="brian"
  height_m1=1.74
  weight_kg1=83
  name2="adams"
  height_m2=1.76
  weight_kg2=68
  name3="ricky"
  height_m3=1.7
  weight_kg3=60
  def bmi_calculator(name, height_m, weight_kg):
      bmi = weight_kg / (height_m ** 2)
      print("bmi: ")
      print(bmi)
      if bmi &lt; 25:
          returnname + "is not overweight"
      else:
          returnname + "is overweight"
  result1=bmi_calculator(name1, height_m1, weight_kg1)
  result2=bmi_calculator(name2, height_m2, weight_kg2)
  result3=bmi_calculator(name3, height_m3, weight_kg3)
  print(result1)
  print(result2)
  print(result3)
  Traceback (most recent call last):
      File "&lt;input&gt;", line 18, in &lt;module&gt;
      File "&lt;input&gt;", line 17, in bmi_calculator
  NameError: name 'returnname' is not defined
  </code></pre>