Yadda za a raba fayil ɗin CSV cikin Chuks tare da Python?

Python ya raba fayilolin CSV cikin Chunks

Python wata harshe ne mai ƙarfi wanda za'a iya amfani dashi don dalilai daban-daban. Ofayansu yana shigo da fayilolin CSV da kuma sarrafa su cikin chunks.

Manufar wannan koyawa ita ce koyar da ku yadda za a shigo da fayilolin CSV kuma suna amfani da aikin Python a kansu. Za ku koyi yadda ake amfani da shi tare da misalai biyu: raba fayil a cikin fayiloli da yawa dangane da farkon shafi kuma raba fayil daban-daban.

Idan baku da masaniya game da ilimin kimiyyar bayanai shine, tsari na cire ilimi daga bayanai domin ana iya amfani da shi wajen yin hukunci ko abubuwan da suka yanke shawara game da ayyukan nan gaba.

Yadda ake amfani da yaren Python don raba fayilolin CSV cikin Chunks?

Kuna iya rarrabe fayiloli tare da Module na CSV. Wannan tsarin yana dacewa da Python 2 da Python 3.

Bude fayil ɗin CSV a cikin kwasfa ta Python. Za ku yi amfani da CSV. Mai karatu (file, datti =), sannan ka wuce shi zuwa CSV. Marubuci kuma zaku yi amfani da igiya maimakon fayil ɗin don a cikin Python 3 Strings sune abubuwa (Halin ƙwaƙwalwar ajiya azaman Lissafi) don haka za mu iya canza halayen da ba a tsammani ba.

Python3 raba fayil fayil a cikin crunks.py

Yadda za a raba fayilolin CSV tare da Python? Yadda za a raba fayil ɗin CSV tare da Python? Ya faɗi fayil ɗin rubutu cikin manyan fayiloli da yawa dangane da shafi na farko a cikin fayil ɗin rubutu. Hanya ce mai sauki, mai sauki, da iko mai karfi don ƙirƙirar fayilolin CSV ko sauya fayilolin CSV / Wakafi.

Wannan shine yadda za ku shigo da fayil ɗinku:

Shigo da CSV

Yanzu zakuyi amfani da Delimiter = hujja ga aji mai karatu. Tsarin haruffa ne wanda zai raba filayen. A wannan yanayin, lamari ne (,). Don haka mai karatu (file, deli = ', zai raba kowane layi zuwa wasu sassa da yawa dangane da shafi.

mai karatu = CSV.reader (Myfile, Delimiter = ',')

Abu na gaba da za a yi shi ne amfani da matukan marubucin don rubuta bayanai a cikin fayil. Rubuta bayanan ta amfani da littafin marubucin kuma ya wuce zuwa wani abu abun da ke a maimakon fayil ɗin saboda abubuwa ne da ba a tsammani ba tare da canza nau'in ba. Sanya sifa sifa kamar 'saboda hakan zai fara rubutu akan wannan fayil ɗin.

marubuci = CSV.Waɗawa (Stritio)

Mataki na gaba shine koya wa marubucin marubucin don amfani da duk bayanan a cikin aji na karatu don rubuta shi cikin fayil. Za ku shiga cikin layuka kuma ku rubuta kowane ɗayan a cikin fayil. Mataki na ƙarshe shine amfani da marubutan, wanda zai rubuta jere (layin guda ɗaya) a cikin fayil na amfani da marubucin. marubutan (jere).

Ga ni, jere cikin mai karatu: #this madauki yana tafiya ta kowane layi daga mai karatu kuma ya rubuta kowane layi a cikin fayil. Layuka.apeng (jere)

marubutan (jere) #Add jere a ƙarshen fayil ɗin.

marubutan (layuka) #Add dukkanin layuka a lokaci daya.

A ƙarshe, rufe fayil ɗinku kuma buɗe shi don tabbatar da komai an sami ceto daidai. Ya kamata a sami kowane chunk daga CSV ɗinku a cikin fayil ɗin nasa tare da sunan asali azaman fayil ɗin asali, amma tare da fadada daga .csv.

streto = io.Stringio (myfile.read ())

marubuci = CSV.Waɗawa (Stritio)

marubuci = CSV.Waɗawa (STREIOIO, Delimiter = ',

reader = csv.reader(myFile, delimiter=’, for i, row in reader: rows.append(row) streto = io.Stringio (myfile.read ()) marubuci = CSV.Waɗawa (Stritio) writer = csv.writer(stringIO, delimiter=’) writerow(row) streto = io.Stringio (myfile.read ()) marubuci = CSV.Waɗawa (Stritio) marubuci = CSV.Waɗawa (STREIOIO, Delimiter = ',’) writerow(rows) myFile.close() #Closes the file so it can be opened again myFile = open('list_of_chunks.csv', 'w') #Open the file as if it was a file. myFile.close() #Closes the file so it can be opened again

Python ya raba fayil ɗin CSV cikin Chuks.py

Yadda za a raba CSV ta amfani da Python? Yadda za a raba CSV a Python? Rage CSV ko Halittar-rabuwa (CSV) dangane da kandunan kananan shafi na amfani da Python, ilimin kimiyyar bayanai, da kuma dabarun da kayan aikin VBA da yawa. Shereize () Aikin zai iya taimaka maka raba kirtani CSV cikin kayan rubutu daban.

Excel yana daya daga cikin kayan aikin software na software don bincike na bayanai. Ya zo tare da fasalulluka da yawa waɗanda Python da sauran harsunan mãkirci suke tallafawa. Kamar yadda Excel ya kasance ɗayan kayan aikin da aka fi amfani da shi don nazarin bayanai, haɗa shi da Python yana da mafi sani ga mai amfani fiye da kowane yare na shirye-shirye, gami da Python.

A cikin wannan koyawa, za ku koyi yadda ake ajiye fayil ɗin CSV kamar ƙarin fayiloli da yawa a cikin Python. Za ku ajiye fayilolin azaman kaza na bayanai daga fayil zuwa yawancin sabbin fayiloli da yawa.

Kuna iya amfani da tsarin CSV don karanta da rubuta fayilolin CSV. Hakanan zakuyi amfani da kirtani wanda zai yi amfani da Python da sauri kuma mafi sauki fiye da amfani da tsarin karewa da macros. Ana samun kayan aikin CSV a cikin python 2 da Python 3 juzu'i.

Yadda za a raba fayilolin CSV tare da Python? Yadda za a raba CSV a Python? Rage CSV ko Halittar-rabuwa (CSV) dangane da kandunan kananan shafi na amfani da Python, ilimin kimiyyar bayanai, da kuma dabarun da kayan aikin VBA da yawa. Shereize () Aikin zai iya taimaka maka raba kirtani CSV cikin kayan rubutu daban.

Python3 raba fayil fayil a cikin crunks.py

importar csv myfile = aberto ("list_of_anacos.csv", "r") lector = csv.reader (myFile, delimiter = ",") mentres true: file = seguinte (lector) # segue lendo unha liña do ficheiro CSV ata alí ata alí non é máis liñas. split = file.split ("\ t") # dividir cada fila nunha lista de tokens mediante a función tokenize (). split = ["", ","]. Únete (dividir) # destruír cada elemento da lista de tokens e poñelos ao final

Don na raba: buga (i) # buga kowane shigarwa daga jerin tare da hutu na layi. MyFile.Ceose () Rufe fayil ɗin domin a sake buɗe shi

Kuna iya raba fayil ɗin CSV ta amfani da Module na CSV amma a Python 3 sun canza hanyar da aka adana jerin. Jerin abu abu ne a cikin Python 3 maimakon jeri idan kun dauki wani nau'in bayanai kamar str inda zaku canza wannan zuwa nau'in abu. Kuna iya samun halayen da ba tsammani lokacin aiki tare da abubuwa azaman ƙimar kirtani ba a karɓa da duk ayyukan.

Ƙarshe

CSV fayil fayil fayil ne dabi'u wanda abubuwa zasu rarrabe ta wakafi. Tsarin CSV ana ɗaukar tsarin rubutu kuma an yi niyya ne don samar da bayanan tabular.

Nau'in fayil, wanda yake da tsawaita CSV, ya ƙunshi bayanan CSV, ya ƙunshi bayanan da za'a iya shigo da su cikin bayanai, da wannan fayil ɗin iri ɗaya na iya ɗaukar bayanan da ake buƙata don tsara teburin.

Idan kana da fayil ɗin CSV wanda ke buƙatar kasusasu fayiloli da yawa, zaku iya amfani da tsarin CSV. Kuna iya karanta Fayil ta amfani da Module na CSV kuma rubuta shi zuwa fayiloli da yawa ta amfani da Module.

Hakanan zaka iya karanta fayilolin CSV ta amfani da sauran harsunan shirye-shirye kamar su perl, Ruby, Java, JavaScript, ko PHP. Yi amfani da tsarin CSV da amfani da waɗancan yaruka don aiwatar da bayananku.