Python में ग्राहक सूची से डुप्लिकेट हटाने के तीन तरीके और उनके परिणाम

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जब दो पंक्तियाँ पूरी तरह एक जैसी नहीं होतीं, तो डुप्लिकेट हटाने का तरीका चुनना अहम हो जाता है। लेख में 412 पंक्तियों वाली एक उदाहरण ग्राहक सूची पर पूरी पंक्ति, केवल ईमेल और ईमेल के साथ शहर जैसी तीन key की तुलना की गई है। पूरी पंक्ति वाली key से कुछ नहीं हटता, जबकि केवल ईमेल से 38 पंक्तियाँ हटती हैं और ईमेल व शहर से 25। लेख बताता है कि पहली मिली पंक्ति रखना डिफ़ॉल्ट है, पर सबसे नई ऑर्डर वाली पंक्ति रखने के लिए पहले तारीख के अनुसार क्रम बदलना ज़रूरी है। यह तरीका Python के साथ-साथ osFoundry के Spreadsheet Editor के Remove Duplicates कमांड में भी समझाया गया है।

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