Plotly:AttributeError:“int”对象没有属性“replace”

Question

这里是关于AttributeError的：“int”对象没有属性“replace”。虽然部分代码来自plotly文档

有人能帮我解决这个精心设计的子地块错误吗：这个曾经用来运行，但现在它抛出了一个错误？我不明白

from plotly.subplots import make_subplots
fig = make_subplots(rows=2)
Tech = data2.Technologie.unique()

import plotly.graph_objects as go
from plotly.validators.scatter.marker import SymbolValidator

raw_symbols = SymbolValidator().values
namestems = []
namevariants = []
symbols = []
for i in range(0,len(raw_symbols),2):
    name = raw_symbols[i+1]
    symbols.append(raw_symbols[i])
    namestems.append(name.replace("-open", "").replace("-dot", ""))
    namevariants.append(name[len(namestems[-1]):])

#fig = make_subplots(subplot_titles=("Demand"))

#range_y =[1200, 1800]
#Lignite1, Gas1, Hardcoal1, Demand1, PV1, Wind_Onshore1, Wind_Offshore1, Lit_Ion1, PSH1

---------------------------------------------------------------------------

AttributeError                            Traceback (most recent call last)

<ipython-input-4-06419481b94d> in <module>
     23     name = raw_symbols[i+1]
     24     symbols.append(raw_symbols[i])
---> 25     namestems.append(name.replace("-open", "").replace("-dot", ""))
     26     namevariants.append(name[len(namestems[-1]):])
     27 

AttributeError: 'int' object has no attribute 'replace'