langchain-ai/deepagents
1
0
Fork 0
mirror of https://github.com/langchain-ai/deepagents.git synced 2026-07-24 20:35:31 -04:00
Code Issues 169 Packages Projects Releases 16 Wiki Activity

write file with sandbox raise string format error: KeyError: 'e' #311

New Issue
Closed
opened 2026-02-16 09:15:20 -05:00 by yindo · 1 comment
yindo commented 2026-02-16 09:15:20 -05:00
Owner
Copy Link
Copy Source

Originally created by @ZLeopard on GitHub (Jan 26, 2026).

Checked other resources

  • This is a bug, not a usage question.
  • I added a clear and descriptive title.
  • I searched existing issues and didn't find this.
  • I can reproduce this with the latest released version.
  • I included a minimal reproducible example and steps to reproduce.

Area (Required)

  • deepagents (SDK)
  • cli

Reproduction Steps / Example Code (Python)

file path: libs/deepagents/deepagents/backends/sandbox.py
_WRITE_COMMAND_TEMPLATE = """python3 -c "
import os
import sys
import base64
import json

# Read JSON payload from stdin containing file_path and content (both base64-encoded)
payload_b64 = sys.stdin.read().strip()
if not payload_b64:
    print('Error: No payload received for write operation', file=sys.stderr)
    sys.exit(1)

try:
    payload = base64.b64decode(payload_b64).decode('utf-8')
    data = json.loads(payload)
    file_path = data['path']
    content = base64.b64decode(data['content']).decode('utf-8')
except Exception as e:
    print(f'Error: Failed to decode write payload: {e}', file=sys.stderr)
    sys.exit(1)

# Check if file already exists (atomic with write)
if os.path.exists(file_path):
    print(f'Error: File \\'{file_path}\\' already exists', file=sys.stderr)
    sys.exit(1)

# Create parent directory if needed
parent_dir = os.path.dirname(file_path) or '.'
os.makedirs(parent_dir, exist_ok=True)

with open(file_path, 'w') as f:
    f.write(content)
" <<'__DEEPAGENTS_EOF__'
{payload_b64}
__DEEPAGENTS_EOF__"""

cmd = _WRITE_COMMAND_TEMPLATE.format(payload_b64=payload_b64)

Error Message and Stack Trace (if applicable)

# Single atomic check + write command
>       cmd = _WRITE_COMMAND_TEMPLATE.format(payload_b64=payload_b64)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
E       KeyError: 'e'

Description

error code: except Exception as e:
print(f'Error: Failed to decode write payload: {e}', file=sys.stderr)
sys.exit(1)
fix: use {{e}} instead of {e}

Environment / System Info

No response

Originally created by @ZLeopard on GitHub (Jan 26, 2026). ### Checked other resources - [x] This is a bug, not a usage question. - [x] I added a clear and descriptive title. - [x] I searched existing issues and didn't find this. - [x] I can reproduce this with the latest released version. - [x] I included a minimal reproducible example and steps to reproduce. ### Area (Required) - [x] deepagents (SDK) - [x] cli ### Reproduction Steps / Example Code (Python) ```python file path: libs/deepagents/deepagents/backends/sandbox.py _WRITE_COMMAND_TEMPLATE = """python3 -c " import os import sys import base64 import json # Read JSON payload from stdin containing file_path and content (both base64-encoded) payload_b64 = sys.stdin.read().strip() if not payload_b64: print('Error: No payload received for write operation', file=sys.stderr) sys.exit(1) try: payload = base64.b64decode(payload_b64).decode('utf-8') data = json.loads(payload) file_path = data['path'] content = base64.b64decode(data['content']).decode('utf-8') except Exception as e: print(f'Error: Failed to decode write payload: {e}', file=sys.stderr) sys.exit(1) # Check if file already exists (atomic with write) if os.path.exists(file_path): print(f'Error: File \\'{file_path}\\' already exists', file=sys.stderr) sys.exit(1) # Create parent directory if needed parent_dir = os.path.dirname(file_path) or '.' os.makedirs(parent_dir, exist_ok=True) with open(file_path, 'w') as f: f.write(content) " <<'__DEEPAGENTS_EOF__' {payload_b64} __DEEPAGENTS_EOF__""" cmd = _WRITE_COMMAND_TEMPLATE.format(payload_b64=payload_b64) ``` ### Error Message and Stack Trace (if applicable) ```shell # Single atomic check + write command > cmd = _WRITE_COMMAND_TEMPLATE.format(payload_b64=payload_b64) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ E KeyError: 'e' ``` ### Description error code: except Exception as e: print(f'Error: Failed to decode write payload: {e}', file=sys.stderr) sys.exit(1) fix: use {{e}} instead of {e} ### Environment / System Info _No response_
yindo added the bugdeepagentsexternal labels 2026-02-16 09:15:20 -05:00
yindo closed this issue 2026-02-16 09:15:20 -05:00
yindo commented 2026-02-16 09:15:20 -05:00
Author
Owner
Copy Link
Copy Source

@eyurtsev commented on GitHub (Feb 11, 2026):

A fix for this was merged ~1-2 weeks ago closing the issue

@eyurtsev commented on GitHub (Feb 11, 2026): A fix for this was merged ~1-2 weeks ago closing the issue
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
MCP
backends
bug
cli
config
customization
deepagents
documentation
external
feature
fix
good first issue
help wanted
integration
internal
invalid
middleware
model
needs investigation
p0
p1
p2
p3
performance
pull-request
Mirrored from GitHub Pull Request
 question
sdk
subagents
unable to reproduce
windows
No Label bug deepagents external
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: langchain-ai/deepagents#311
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?