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mark_attendance.py

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+#from pandas import ExcelWriter
+from pandas import ExcelFile,read_excel
+import datetime as dt
+from openpyxl.utils import get_column_letter
+from openpyxl import load_workbook
+
+def save_attendance(names,subject):
+    names=set(names)
+
+    #df=read_csv('attendance_data/attendance.csv',index_col='Name')
+    xls = ExcelFile('attendance_data/attendance.xlsx')
+    df=read_excel(xls,subject,index_col='Name')
+
+    today=dt.datetime.now()
+    today=today.strftime('%d/%m/%y')
+
+    student_status=['Nil' for i in range(len(df))]
+    df[today]=student_status #Marking NIL initially to all student
+
+    '''df.to_csv('attendance_data/attendance.csv')
+    with ExcelWriter('attendance_data/attendance.xlsx') as writer:
+        df.to_excel(writer,sheet_name=subject.lower())'''
+
+    '''with ExcelWriter('attendance_data/attendance.xlsx', engine='xlsxwriter') as writer:
+        writer.book=excelbook
+        writer.sheets = dict((ws.title, ws) for ws in excelbook.worksheets)
+        #df.to_excel(writer,sheet_name=subject.lower())
+        writer.save()'''
+
+    excelbook=load_workbook('attendance_data/attendance.xlsx')
+    sheet=excelbook.get_sheet_by_name(subject.lower())
+    max_col_no=sheet.max_column
+    max_col_letter=get_column_letter(sheet.max_column+1)
+    row_1=[]
+
+    for i in range(max_col_no):
+        row_1.append(sheet.cell(row=1,column=i+1).value)
+
+    if today in row_1:
+        print('Attendance already marked for today !!')
+        return
+
+    #mark attendance
+    for i in names:
+        df.loc[i][today]='Yes'
+
+    present_status=df[today].values.tolist()
+    present_status.insert(0,today)
+
+    #writing to excel file
+    for i in range(len(df)+1):
+        #print(max_col_letter+str(i+1))  #for debugging
+        c=sheet[max_col_letter+str(i+1)]
+        c.value=present_status[i]
+    excelbook.save('attendance_data/attendance.xlsx')
+
+
+if __name__=='__main__':
+    save_attendance(names=['Pradhyumn'],subject='mechanics') 
+
+
+
+