Golder_elt_homework

homework.py

@@ -0,0 +1,128 @@
+"""
+Name: Katie Golder
+Date: 6-11-24
+Description: Reads homework.csv and applies needed transformations to export as formatted.csv
+"""
+
+import csv #to read and write to the csv
+from decimal import * #type for currency formatting
+
+def main():
+    #Reads homework.csv
+    with open('homework.csv', newline='') as csvfile:
+        lineReader = csv.reader(csvfile, delimiter=',')
+        data = []
+        rowCount = 0
+
+        #Transformation lists
+        changeDate = []
+        changeCurrency = []
+        changeDistance3 = []
+        changeUPC = []
+
+        #Goes through each row starting with headers
+        for row in lineReader:
+            newRow =[]
+            colCount = 0 #Column count
+            if rowCount == 0: #Header row
+                for title in row:
+
+                    if isDate(title) == True:
+                        changeDate.append(colCount)
+
+                    if isCurrency(title) == True:
+                        changeCurrency.append(colCount)
+
+                    unit = isDistance(title)
+                    if unit != False:
+                        title = title.replace(unit, "inches")
+                        changeDistance3.append(colCount)
+
+                    #No weights without pounds needing conversion
+
+                    if isUPC(title) == True: #No Gtin or EAN
+                        changeUPC.append(colCount)
+
+                    newRow.append(title)
+                    colCount += 1
+
+            else:#Data rows
+                colCount = 0
+                for item in row:
+
+                    if item != "":
+                        if colCount in changeDate:
+                            item = makeISO(item)
+
+                        if colCount in changeCurrency:
+                            item = roundCurrency(item)
+
+                        if colCount in changeDistance3:
+                            item = convertInches3(item)
+
+                        if colCount in changeUPC:
+                            item = convertString(item)
+
+                    newRow.append(item)
+                    colCount += 1
+
+            data.append(newRow)
+            rowCount += 1
+
+    #Writes all information to formatted.csv
+    with open('formatted.csv', mode='w', newline='') as file:
+        writer = csv.writer(file)
+        writer.writerows(data)
+
+
+def isDate(title):
+    if "date" in title:
+        return True
+    else:
+        return False
+def makeISO(item):
+    digits = item.split("/")
+
+    year = "20" + digits[2]
+    #month
+    if len(str(digits[0])) == 1:#Acconts for single or double digits
+        month = "0" + digits[0]
+    else:
+        month = digits[0]
+    #day
+    if len(str(digits[1])) == 1: #Acconts for single or double digits
+        day = "0" + digits[1]
+    else:
+        day = digits[1]
+
+    ISO = year + "-" + month + "-" + day
+    return ISO
+
+def isCurrency(title):
+    if "$" in title:
+        return True
+    else:
+        return False
+def roundCurrency(item):
+    numberOnly = (item.replace("$","")).replace(",","")
+    roundNumber = Decimal(numberOnly).quantize(Decimal('0.01'), rounding=ROUND_HALF_UP)
+    return roundNumber
+
+def isDistance(title):
+    if ("feet" in title) and ("cubic" in title):
+        return ("feet")
+    else:
+        return False
+def convertInches3(item):
+    return Decimal(float(item) * 1728).quantize(Decimal('0.01'), rounding=ROUND_HALF_UP)
+
+def isUPC(title):
+    if "upc" in title:
+        return True
+    else:
+        return False
+def convertString(item):
+    return(str(item))
+
+
+main()