Improve conditions and refactor dataset classes (#475)

* Reimplement conditions

* Refactor datasets and implement LabelBatch

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Co-authored-by: Dario Coscia <dariocos99@gmail.com>

.pylintrc

@@ -214,7 +214,6 @@ logging-modules=logging
 
 
 [FORMAT]
-
 # Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
 expected-line-ending-format=
 
@@ -250,6 +249,8 @@ single-line-if-stmt=no
 
 
 [BASIC]
+# Allow redefinition of input builtins
+allowed-redefined-builtins=input
 
 # Naming hint for argument names
 argument-name-hint=(([a-z][a-z0-9_]{2,30})|(_[a-z0-9_]*))$
@@ -401,7 +402,7 @@ max-returns=6
 max-statements=50
 
 # Minimum number of public methods for a class (see R0903).
-min-public-methods=2
+min-public-methods=0
 
 
 [CLASSES]