SlideShare a Scribd company logo
STRING
FORMATTING Assyifa R
1906399152
Faris M
1906400223
Mardianto
1906293152
Natasya Z
1906293253
Fariz Dadari, S.Kom, M.Sc., Ph.D
DAFTARISI
“OLD STYLE”
String
Formatting
(% OPERATOR)
String
Interpolation /
f-Strings
(Python 3.6+)
“New Style”
String
Formatting
(str.format)
Template
Strings
(Standard Library)
Formatting menggunakan operator % “Old Style”
String
Operatortest.py
test.py
terminal
terminal
‘New Style’ Formatting menghilangkan operator % dan diganti dengan memanggil
.format() pada objek string
‘New Style’ Formatting
menghilangkan operator %
dan diganti dengan memanggil
.format() pada objek string
Untuk positional
arguments, variabel pada
string di pass
berdasarkan urutan
pada format()
Terminal: Terminal:
“New Style” String Format (str.format)
Secara umum, struktur string formatting yang biasa digunakan adalah:
NEWSTYLEFORMATTING
Align
> Kanan
< Kiri
^ Tengah
{:.4f} #floating-point dengan presisi 4
{:6.4f} #floating-point dengan presisi 4 dan panjang 6 karakter
Descriptor
s string
d desimal
f Floating-point desimal
e Floating-oiunt eksponensial
% Floating-poing persen
{:[align] [minimum width] [.precision] [descriptor]}
print(“Halo, selamat {} mahasiswa {}!”.format(“pagi”, “Fasilkom”))ContohRunningProgram
Halo, selamat pagi mahasiswa Fasilkom!
test.py
terminal:
Import math
print(“Nilai {:-^6s} adalah {:>8.2f}!”.format(“pagi”, math.pi))
Nilai --pi-- adalah 3.14! Rata kanan, panjang 8 karakter
dengan presisi 2 angka dibelakang
koma
Rata tengah, panjang 6 karakter, dengan pengisi “-”
test.py
terminal:
Formatting dengan python
expressions di dalam string
String
Interpolations/
F-Strings
(Python 3.6+)
Python expression: variable
Keunggulan Template Strings
adalah template strings lebih
simpel dan kuat.
Template
Strings
(Standard Library)
Terminal
Perbedaan lainnya adalah Template Strings butuh
mengimpor Template class dari modul built-in string.
Template string tidak menjalankan spesifikasi format
sehingga kita harus mengubah variabel yang dimasukan
secara manual.
Contoh : mengubah bilangan basis 10 menjadi basis 8 harus
dilakukan secara manual
● Real Python. “Python String Formatting Best
Practices.” Real Python, Real Python, 12 Dec. 2018,
https://realpython.com/python-string-formatting/.
● Punch, W. F., and Richard J. Enbody. The Practice of
Computing Using Python. 3rd ed., Pearson, 2017.
REFERENSI

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String Formatting Python

  • 1. STRING FORMATTING Assyifa R 1906399152 Faris M 1906400223 Mardianto 1906293152 Natasya Z 1906293253 Fariz Dadari, S.Kom, M.Sc., Ph.D
  • 2. DAFTARISI “OLD STYLE” String Formatting (% OPERATOR) String Interpolation / f-Strings (Python 3.6+) “New Style” String Formatting (str.format) Template Strings (Standard Library)
  • 3. Formatting menggunakan operator % “Old Style” String Operatortest.py test.py terminal terminal
  • 4. ‘New Style’ Formatting menghilangkan operator % dan diganti dengan memanggil .format() pada objek string ‘New Style’ Formatting menghilangkan operator % dan diganti dengan memanggil .format() pada objek string Untuk positional arguments, variabel pada string di pass berdasarkan urutan pada format() Terminal: Terminal: “New Style” String Format (str.format)
  • 5. Secara umum, struktur string formatting yang biasa digunakan adalah: NEWSTYLEFORMATTING Align > Kanan < Kiri ^ Tengah {:.4f} #floating-point dengan presisi 4 {:6.4f} #floating-point dengan presisi 4 dan panjang 6 karakter Descriptor s string d desimal f Floating-point desimal e Floating-oiunt eksponensial % Floating-poing persen {:[align] [minimum width] [.precision] [descriptor]}
  • 6. print(“Halo, selamat {} mahasiswa {}!”.format(“pagi”, “Fasilkom”))ContohRunningProgram Halo, selamat pagi mahasiswa Fasilkom! test.py terminal: Import math print(“Nilai {:-^6s} adalah {:>8.2f}!”.format(“pagi”, math.pi)) Nilai --pi-- adalah 3.14! Rata kanan, panjang 8 karakter dengan presisi 2 angka dibelakang koma Rata tengah, panjang 6 karakter, dengan pengisi “-” test.py terminal:
  • 7. Formatting dengan python expressions di dalam string String Interpolations/ F-Strings (Python 3.6+) Python expression: variable
  • 8. Keunggulan Template Strings adalah template strings lebih simpel dan kuat. Template Strings (Standard Library) Terminal
  • 9. Perbedaan lainnya adalah Template Strings butuh mengimpor Template class dari modul built-in string. Template string tidak menjalankan spesifikasi format sehingga kita harus mengubah variabel yang dimasukan secara manual. Contoh : mengubah bilangan basis 10 menjadi basis 8 harus dilakukan secara manual
  • 10. ● Real Python. “Python String Formatting Best Practices.” Real Python, Real Python, 12 Dec. 2018, https://realpython.com/python-string-formatting/. ● Punch, W. F., and Richard J. Enbody. The Practice of Computing Using Python. 3rd ed., Pearson, 2017. REFERENSI