Fix PermissionError: Permission denied when reading or writing files

Thu, 02 Jul 2026 17:51:00 +0800

Fix PermissionError: Permission denied when reading or writing files

1. Symptoms

Python’s PermissionError manifests as a subclass of OSError with errno 13 (EACCES) on Unix-like systems or equivalent access denied codes on Windows. Common indicators include tracebacks during file operations like open(), os.remove(), or shutil.copy(). A typical shell or console output looks like this:

Traceback (most recent call last):
  File "script.py", line 10, in <module>
    with open('/etc/passwd', 'r') as f:
PermissionError: [Errno 13] Permission denied: '/etc/passwd'

Symptoms escalate in scripts automating file I/O: batch processes fail silently or loudly, logs fill with access denials, and tools like Jupyter notebooks halt on cell execution. On Windows, it appears as PermissionError: [Errno 13] Permission denied: 'C:\\Windows\\System32\\drivers\\etc\\hosts'. Cross-platform consistency arises from Python’s io module deferring to OS syscalls, triggering on read-only system dirs, locked files, or parent directory execute-bit absence.

Fix clw-fs-denied: File system access denied in OpenClaw workspace

Sat, 09 May 2026 12:44:04 +0800

1. Symptoms

The clw-fs-denied error manifests when OpenClaw attempts to read from or write to files within a workspace but encounters permission restrictions or locked resources. This error typically surfaces during build operations, plugin loading, configuration parsing, or when accessing project assets.

Common symptoms include:

Build commands fail immediately with access denied messages
Plugin installations abort with incomplete file writes
Configuration files cannot be loaded or modified
Asset pipelines fail during compilation stages
Temporary files cannot be created or cleaned up

The error message follows a consistent pattern:

File-Access on ErrorVault — Developer Error Code Dictionary

Fix PermissionError: Permission denied when reading or writing files

Fix PermissionError: Permission denied when reading or writing files

1. Symptoms

Fix clw-fs-denied: File system access denied in OpenClaw workspace

1. Symptoms