Dropping python2 support.

README.md

@@ -13,7 +13,9 @@ when compared to latex.
 Install
 =======
 
-    pip2 install lax
+Works on python3+ only
+
+    pip install lax
 
 That is all.
 

escs.sh

@@ -1,30 +1,30 @@
 ##############################################################################
-# clone lax repository.
+# Clone lax repository.
 
 cd ~/projects
 git clone git@github.com:iogf/lax.git lax-code
 
-# push lax.
+# Push lax.
 cd ~/projects/lax-code
 git status
 git add *
 git commit -a 
 git push
-
-# it installs lax.
+##############################################################################
+# Install lax.
 cd ~/projects/lax-code
 sudo bash -i
-python2 setup.py install
+python setup.py install
 rm -fr build
 exit
 ##############################################################################
-# create, development, branch, lax.
+# Create, development, branch, lax.
 cd /home/tau/projects/lax-code/
 git branch -a
 git checkout -b development
 git push --set-upstream origin development
 ##############################################################################
-# merge development into master.
+# Merge development into master.
 cd /home/tau/projects/lax-code/
 git checkout master
 git merge development

lax

@@ -8,7 +8,7 @@ if __name__ == '__main__':
     parser.add_option("-c", "--code", action='store', dest="code", help="Example: lax - c 'x ** 2 - 1'")
     (opt, args) = parser.parse_args()
 
-    print run(opt.code)
+    print(run(opt.code))
 
 
 

liblax/core.py

@@ -3,7 +3,7 @@
 FMT0 = lambda data: data
 FMT1 = lambda data: '\\left(%s\\right)' % data
 
-class Function(object):
+class Function:
     def __call__(self, exp):
         return Block(self, exp)
 
@@ -14,7 +14,7 @@ def __init__(self, name, exp):
     def __str__(self, op=None):
         return '%s\\left(%s\\right)' % (self.name, self.exp.__str__(self))
 
-class Chk(object):
+class Chk:
     def __call__(self, exp):
         return Function(self, exp)
 
@@ -42,10 +42,10 @@ def __mul__(self, other):
     def __rmul__(self, other):
         return Mul(other, self)
 
-    def __div__(self, other):
+    def __truediv__(self, other):
         return Div(self, other)
 
-    def __rdiv__(self, other):
+    def __rtruediv__(self, other):
         return Div(other, self)
 
     def __pow__(self, other):
@@ -64,7 +64,7 @@ class Num(Chk):
     def __init__(self, val):
         Chk.__init__(self, val)
 
-class Block(object):
+class Block:
     def __call__(self, exp):
         return Block(self, exp) 
 

liblax/parser.py

@@ -1,6 +1,6 @@
 from tokenize import generate_tokens as split
 from tokenize import NUMBER, NAME, STRING, OP, untokenize
-from StringIO import StringIO
+from io import StringIO
 from liblax.core import *
 
 def build(data):

setup.py

@@ -3,7 +3,7 @@
 from distutils.core import setup
 
 setup(name="lax",
-      version="0.3",
+      version="1.0.0",
       packages=["liblax"],
       scripts=['lax'],
       author="Iury O. G. Figueiredo",