SShortSingh.
Back to feed

Free Python method builds resilient B2B lead scraper, avoiding SaaS fees

0
·2 views

A new guide details how developers can build a cost-free local B2B lead scraper in Python, avoiding monthly fees for commercial scraping services. The article argues most B2B extraction tasks, like scraping public directories or vendor listings, do not require expensive proxy services. It proposes a resilient architecture using techniques like Gaussian jitter delays, user-agent rotation, and multi-selector fallback parsing to avoid detection and handle website changes. The method is designed to prevent common failures like rate-limiting and DOM updates that break simpler scripts. The guide includes production-ready code for a core scraping session class to implement this approach.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

Log in to join the discussion and vote.

Log in

Related stories

0
ProgrammingDEV Community ·

Tool detects hidden duplicate React copies that cause hook errors

A new command-line tool called onecopy helps developers identify duplicate React installations that cause 'Invalid hook call' errors. The tool addresses a scenario where npm ls reports only one version, but linked libraries or workspaces actually load separate copies from different directories. It works by tracing the actual file resolution path from each importing package's real location, grouping results by physical directory. The tool outputs which copies are being used, by whom, and the likely cause, and can be integrated into CI checks.

0
ProgrammingDEV Community ·

Developer details technical requirements for compliant data audit workbench

A developer writing for DEV Community argues that effective data audit systems should focus on creating immutable evidence pipelines rather than dashboards. They recommend capturing specific control events like access, export, and deletion in a hash-chained, append-only format to prove sequence integrity. Practical implementation requires object storage with write-once-read-many (WORM) locks and long retention periods, though this increases costs. The author also addresses challenges like handling high-throughput events and reconciling immutable logs with data erasure requests through technical patterns like salting personal data keys.

0
ProgrammingDEV Community ·

Hacktoberfest 2026 Weekend Challenge Offers Prizes for AI Projects

DEV Community has launched a weekend Hacktoberfest challenge where participants build a new project. The project must use open-source AI at its core to solve a real problem for a specific person. Submissions, which require a written post on DEV, are due by October 5 at 6:59 AM UTC. A total of $2,450 in prizes will be awarded to 17 winners, including one overall winner and 16 category winners for specific partner technologies.

0
ProgrammingDEV Community ·

Overly broad training requirements block engineers from essential PLM access, creating shadow processes

Engineers in regulated industries are often blocked from accessing Product Lifecycle Management systems due to expired training on irrelevant safety modules. This stems from companies assigning all training courses to all employees as a defensive compliance measure, rather than tailoring them to specific roles. For example, a software engineer can be locked out for missing a forklift safety course they will never need. This practice contradicts ISO 13485, which requires competence training to be appropriate to an employee's specific activities. The resulting delays and workarounds create shadow processes that can actually increase operational risk.