ModuleNotFoundError: 找不到'solana.publickey'模块求助

问题说明 #

运行代码时触发ModuleNotFoundError，提示找不到'solana.publickey'模块，已尝试修改自身代码中的Pubkey引用，但问题仍未解决。使用的依赖版本：

• PySerum 0.5.0a0
• Solana 0.32.0
• Solders 0.20.0

运行代码 #

import solana
import pyserum
from pyserum.connection import conn
from pyserum.market import Market
from solana.rpc.api import Client
from solders.pubkey import Pubkey

# Connect to the Solana devnet
http_client = Client("https://api.devnet.solana.com")
connection = conn("https://api.devnet.solana.com")

# Market address we will interact with
market_address = "AMKpY1FVmZTRUDqCGyJvDBEYYqQwoqscu9J65MVXhkcT"

# Fetch the market using the updated Pubkey reference
market = Market.load(connection, Pubkey.from_string(market_address))

# Fetch the order book
order_book = market.load_order_book()
bids = order_book.bids()
asks = order_book.asks()

# Print the best bid and ask
print(f"Best bid: {bids.get_best()}, Best ask: {asks.get_best()}")

错误信息 #

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
Cell In[5], line 3
      1 import solana
      2 import pyserum
----> 3 from pyserum.connection import conn
      4 from pyserum.market import Market
      5 from solana.rpc.api import Client

File ~/anaconda3/lib/python3.11/site-packages/pyserum/connection.py:6
      3 import requests
      5 from solana.rpc.api import Client as conn  # pylint: disable=unused-import # noqa:F401
----> 6 from solana.publickey import PublicKey
      7 from .market.types import MarketInfo, TokenInfo
      9 LIVE_MARKETS_URL = "https://raw.githubusercontent.com/project-serum/serum-ts/master/packages/serum/src/markets.json"

ModuleNotFoundError: No module named 'solana.publickey'

解决方案 #

原因分析 #

Solana 0.32.0版本已将PublicKey类从solana.publickey模块迁移到了solders.pubkey模块，但你使用的PySerum 0.5.0a0内部代码仍在引用旧的模块路径，导致导入失败。

方案一：修改PySerum内部代码 #

• 找到PySerum的connection.py文件，路径为~/anaconda3/lib/python3.11/site-packages/pyserum/connection.py
• 打开文件，将第6行的from solana.publickey import PublicKey替换为from solders.pubkey import Pubkey
• 检查文件中其他是否有引用PublicKey的地方，全部替换为Pubkey
• 保存文件后重新运行代码

方案二：降级Solana版本 #

如果不想修改第三方库代码，可以将Solana降级到0.31.x版本（该版本仍保留solana.publickey模块），执行以下命令：

pip install solana==0.31.0

内容的提问来源于stack exchange，提问作者B S