New submission from Hardik <hardik...@gmail.com>:
I have created function "listappend():"with two arguments.Function can append list value with each function call and return updated value. I am trying to store this updated value into variable which I can but when I call listappend() to update it changes the stored variable value every time when I call a function. You can see in below given example, list value is [10,20,30] and I have stored with value 40 in varible x. so now x is [10,20,30,40]. I called function with new list value with [50] now it become [10,20,30,40,50] and the value of x is replaced with new value. Even if you store x into a new variable and call listappend() again with new value then it will replace the value of new variable. >>> def listappend(a,list=[]): ... list.append(a) ... return list ... >>> listappend(10) [10] >>> listappend(20) [10, 20] >>> listappend(30) [10, 20, 30] >>> x = listappend(40) >>> print(x) [10, 20, 30, 40] >>> y = listappend(50) >>> print(y) [10, 20, 30, 40, 50] >>> z = listappend(60) >>> print(z) [10, 20, 30, 40, 50, 60] >>> print(x) [10, 20, 30, 40, 50, 60] >>> print(y) [10, 20, 30, 40, 50, 60] >>> print(z) [10, 20, 30, 40, 50, 60] >>> ---------- components: macOS files: logical Er messages: 338568 nosy: HardikPatel, ned.deily, ronaldoussoren priority: normal severity: normal status: open title: python user define function is replacing variable value type: enhancement versions: Python 3.7 Added file: https://bugs.python.org/file48227/logical Er _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36393> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
