Code generation with python

Here I will preset a small code generator I am using to generate java, html, jsp, xsd and other codes.

I am using Python27 and Jinja2-2.7.2 

My Files:  

InputData.txt

:This is field list
field1:field1 description
field2:field2 description
field3:field3 description
field4:field4 description
field5:field5 description
field6:field6 description
field7:field7 description

CodeGenerator.py

import jinja2
import codecs
templateLoader = jinja2.FileSystemLoader( searchpath="." )
templateEnv = jinja2.Environment( loader=templateLoader )

TEMPLATE_FILE = "CodeGenerator.jinja"
template = templateEnv.get_template( TEMPLATE_FILE )


COLUMNS       = [tuple(line.split(':')) for line in codecs.open( "InputData.txt", "r", "utf-8" )]

COLUMNS       = map(lambda s: (s[0],(s[0].strip().title(),s[1].strip())), COLUMNS)
#title() copy of the string in which first characters of all the words are capitalized.
#strip()  copy of the string, all chars have been stripped from the beginning and the end
#lambda s --> (field1,(Field1,field1 description))

#ignore the first line
COLUMNS.pop(0)

#add variables to work with
templateVars = { "table" : "MyTableName",
                 "description" : "A simple code generator",
                 "columns" : COLUMNS
               }

outputText = template.render( templateVars )
f = open('Generated.txt', 'w')
outputText = outputText.encode('utf-8')
f.write(outputText)
f.close()
print outputText

CodeGenerator.jinja

//------------------model------------------------

//Generated code for model 

import java.io.Serializable;

public class {{table|capitalize}}_Model implements Serializable{

{%for columnName,columnTitle in columns%}

private String {{columnName|lower}};{%endfor%}

{% for columnName,columnTitle in columns %}

public void set{{columnName|capitalize}}(String {{columnName|lower}}){ 

  this.{{columnName|lower}}={{columnName|lower}};

}

public String get{{columnName|capitalize}}(){ 

  return this.{{columnName|lower}};

}

{% endfor %}

public {{table|capitalize}}_Model({% for columnName,columnTitle in columns %}String {{columnName|lower}}{% if not loop.last %},{% endif %}{% endfor %}){

        {% for columnName,columnTitle in columns %}

this.{{columnName|lower}}={{columnName|lower}}; {% endfor %}

    }

public String toString(){

return {% for columnName,columnTitle in columns %}"{{columnName|lower}}:" + this.{{columnName|lower}}{% if not loop.last %}+{% endif %}{% endfor %};

}

}

//------------------model------------------------

//

//------------------jsp example-----------------

{% for columnName,columnTitle in columns %}

<s:label  cssStyle ="margin-top:5px;color:blue;" value="{{columnTitle[1]}} :" id="{{columnName}}_label"/>

<s:textfield label="{{columnTitle[1]}}" name="myBean.{{columnName}}" />

{% endfor %}

//------------------jsp example-----------------