British personal computer maker Raspberry Pi and its shareholders are looking to raise £157 million ($200 million) via an initial public offering in London, offering a ray of hope for tech listings in the financial hub. Raspberry Pi is looking to raise $40 million of fresh funding, while Raspberry Pi Foundation, a UK charity aimed at promoting computer science to young people and the firm’s main shareholder, will also sell some existing shares, according to a statementBloomberg Terminal on Mond...