NameError:name'build' is not defined

NameError:name'build' is not defined - Printable Version

+- Python Forum (https://python-forum.io)
+-- Forum: Python Coding (https://python-forum.io/forum-7.html)
+--- Forum: General Coding Help (https://python-forum.io/forum-8.html)
+--- Thread: NameError:name'build' is not defined (/thread-1911.html)

NameError:name'build' is not defined - hsunteik - Feb-04-2017

class information(object):
        #version 1
        build=1
        majorVersion=0
        minorVersion=1
        bugFixes=0
        optimization=0
        versionId=str(majorVersion)+'.'+str(minorVersion)+'.'+str(bugFixes)+'.'+str(optimization)
        changelogs='1)infinite procedural generation added\n2)new blocks:dirt,grass,coal ore,iron ore,diamond,ore,gold ore,etc'
        versionName='World is here'




print("version:"+information.versionId)
print('\n') 
print('changelogs:')
print(information.changelogs)
print('\n') 
print('version name:'+information.versionName)
print('\n') 
print(build)

Output:version:0.0.1.0

changelogs:
1)infinite procedural generation added
2)new blocks:dirt,grass,coal ore,iron ore,diamond,ore,gold ore,etc

version name:World is here

but,
there is one error

Error:Traceback (most recent call last):
     File "information.py", line 22, in <module>  
        print (build)
 NameError: name 'build' is not defined

note:the code,output and error above is edited a little(not the original)

Nevermind,my mistake,found the problem and fixed it.

RE: NameError:name'build' is not defined - micseydel - Feb-04-2017

It should be information.build, you should access it the same way as as you access the other ones that are assigned in the same way.

RE: NameError:name'build' is not defined - snippsat - Feb-04-2017

(Feb-04-2017, 04:50 AM)hsunteik Wrote: Nevermind,my mistake,found the problem and fixed it.

Some pointer,there are a style issues and none stander way of doing this stuff.
So here we go:
Indentation is always 4 space,object make no sense in Python 3.x,and class should have capital letter.
PEP 396 Module Version Numbers:

Quote:3) When a module (or package) includes a version number, the version SHOULD be available in the __version__ attribute.
5) The __version__ attribute's value SHOULD be a string.

Eg:

class Information:
    __version__ = '1.0'

Use it:

>>> Information.__version__
'1.0'
>>> obj = Information()
>>> obj.__version__
'1.0'

Quote:str(majorVersion)+'.'+str(minorVersion)

Drop str() and + Python has string formatting.

>>> majorVersion = 1.0
>>> minorVersion = 0.98
>>> print('majorVersion is: {}\nminorVersion is: {}'.format(majorVersion, minorVersion))
majorVersion is: 1.0
minorVersion is: 0.98

In 3.6 there is also f-string.

>>> majorVersion = 1.0
>>> minorVersion = 0.98
>>> print(f'majorVersion is: {majorVersion}\nminorVersion is: {minorVersion}')
majorVersion is: 1.0
minorVersion is: 0.98