add offline dictionary (#45)

* Update README.md

* add dictionary

README.md

@@ -28,6 +28,14 @@ pip install memedensity
 memedensity
 ```
 
+* ### Handy offline dictionary
+A tiny offline dictionary app based on nltk wordnet and pyqt5
+```bash
+cd dictionary
+python app.py
+```
+
+
 * ### Facebook Auto Post
 This is python script that log in into facebook and post the status.  
 
@@ -238,5 +246,6 @@ The following people helped in creating the above content.
 * <a href="https://github.com/ishank011" target="_blank">Ishank Arora</a>
 * <a href="https://github.com/vis2797" target="_blank">Vishal Sharma</a>
 * <a href="https://github.com/apuayush" target="_blank">Apurva Nitanjay</a>
+* <a href="https://github.com/SuryaThiru" target="_blank">Surya K</a>
 
 ### If you like the project give a star  [<img src="Selection_008.png" alt="Star button" align="top">](https://github.com/Logan1x/Python-Scripts)

bin/dictionary/app.py

@@ -0,0 +1,17 @@
+from dict_dialog import Dict_Dialog
+from PyQt5.QtWidgets import QApplication, QDialog
+import sys
+
+
+class AppWindow(QDialog):
+    def __init__(self):
+        super().__init__()
+        self.ui = Dict_Dialog()
+        self.ui.setupUi(self)
+        self.show()
+
+
+app = QApplication(sys.argv)
+w = AppWindow()
+w.show()
+sys.exit(app.exec_())

bin/dictionary/dict_dialog.py

@@ -0,0 +1,56 @@
+from dictionary import definition
+from PyQt5 import QtCore, QtWidgets
+
+
+class Dict_Dialog(object):
+    def setupUi(self, Dialog):
+        Dialog.setObjectName("Dictionary")
+        Dialog.resize(344, 249)
+        self.widget = QtWidgets.QWidget(Dialog)
+        self.widget.setGeometry(QtCore.QRect(10, 10, 321, 236))
+        self.widget.setObjectName("widget")
+        self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
+        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
+        self.verticalLayout.setObjectName("verticalLayout")
+        self.horizontalLayout = QtWidgets.QHBoxLayout()
+        self.horizontalLayout.setContentsMargins(-1, -1, -1, 4)
+        self.horizontalLayout.setSpacing(6)
+        self.horizontalLayout.setObjectName("horizontalLayout")
+        self.searchText = QtWidgets.QLineEdit(self.widget)
+        self.searchText.setText("")
+        self.searchText.setObjectName("searchText")
+        self.horizontalLayout.addWidget(self.searchText)
+        self.searchButton = QtWidgets.QPushButton(self.widget)
+        self.searchButton.setObjectName("searchButton")
+        self.horizontalLayout.addWidget(self.searchButton)
+        self.verticalLayout.addLayout(self.horizontalLayout)
+        self.resultText = QtWidgets.QTextBrowser(self.widget)
+        self.resultText.setObjectName("resultText")
+        self.verticalLayout.addWidget(self.resultText)
+
+        # output fonts
+        font = self.resultText.font()
+        font.setPointSize(20)
+
+        self.retranslateUi(Dialog)
+        QtCore.QMetaObject.connectSlotsByName(Dialog)
+        Dialog.setTabOrder(self.searchText, self.searchButton)
+
+        # events
+        self.searchButton.clicked.connect(self.show_definition)
+
+    def show_definition(self):
+        word = self.searchText.text()
+        defn = definition(word)
+
+        if defn != '':
+            self.resultText.setText(defn)
+        else:
+            self.resultText.setText('definition not found')
+
+    def retranslateUi(self, Dialog):
+        _translate = QtCore.QCoreApplication.translate
+        Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
+        self.searchText.setPlaceholderText(
+            _translate("Dialog", "word to search"))
+        self.searchButton.setText(_translate("Dialog", "search"))

bin/dictionary/dictionary.py

@@ -0,0 +1,25 @@
+from nltk.corpus import wordnet as wn
+
+
+def extractInfo(synset):
+    """
+    get string containing definition from a synset
+    """
+    out = synset.pos() + ' : '
+    out += synset.definition()
+
+    return out
+
+
+def definition(word):
+    ssets = wn.synsets(word)
+    defns = list()
+
+    for i in ssets:
+        # ensure words in synsets are same
+        if i.name().split('.')[0] == word:
+            info = extractInfo(i)
+            defns.append(info)
+
+    # return defns
+    return '\n'.join(defns)