test to read exercises

Author: maugch

easylist.py

@@ -0,0 +1,112 @@
+
+
+'''
+List all questions and hints from 100exercices.txt
+
+The file is a bit of a mess, so it's not easy to split it.
+3.	Questions
+
+Questions are divided by #-----
+Sometimes end with #---
+They should contain:
+Question:
+Hints:
+Example:
+Solution:
+'''
+
+filename = '100exercices.txt'
+allquestions = []
+
+def main():
+    start = False
+    question = []
+    with open(filename ,'r') as f:
+        for line in f:
+            if not start:
+                if '3.	Questions' in line:
+                    #start here:
+                    start = True
+            else:
+                if '#--------------------' in line:
+                    if len(question) >2:
+                        allquestions.append(question)
+                    question = []
+                else:
+                    line = line.strip()
+                    if len(line) > 2:
+                        question.append(line)
+
+    while True:
+        sel = input('Pick a question number (1,{})or (q)uit: '.format(len(allquestions)))
+        if sel == 'q':
+            exit()
+        else:
+            try:
+                val = int(sel)-1
+                result = getQuestion(val)
+                playQuestion(result)
+            except ValueError:
+                print("That's not an int!")
+            
+    
+def playQuestion(question):
+    while True:
+        print('(q)uestion, (h)int, (e)xample, (s)olution, (a)ll, e(x)it')
+        sel = input('Pick one: ')
+        if sel == 'q':
+            printPart(question,'Question:')
+        elif sel == 'h':
+            printPart(question,'Hints:')
+        elif sel == 'e':
+            printPart(question,'Example:')
+        elif sel == 's':
+            printPart(question,'Solution:')
+        elif sel == 'a':
+            printQuestion(question)
+        elif sel == 'x':
+            return
+    
+def printPart(question,part):
+    try:
+        mypart = question[part]
+        print()
+        print(part)
+        for l in mypart:
+            print(l)
+        print()
+    except KeyError:
+        print('{} missing'.format(part))
+
+def printQuestion(question) :
+    for k,v in question.items():
+        print(k)
+        for l in v:
+            print(l)
+        print("--")
+
+def getQuestion(q_number):
+    if q_number > len(allquestions):
+        return False
+    q = allquestions[q_number]
+
+    list_block_titles = ['Question:','Hints:','Example:','Solution:']
+    myblock = []
+
+    question = {}    
+    block_name = 'noname'
+    for line in q:
+        # https://stackoverflow.com/questions/3389574/check-if-multiple-strings-exist-in-another-string
+        match = next((x for x in list_block_titles if x in line), False)
+        if match:
+            question[block_name] = myblock
+            block_name = match
+            myblock = []
+        else:
+            myblock.append(line)
+    question[block_name] = myblock
+
+    return question
+
+if __name__ == '__main__':
+	main()