A structured and backup-friendly way to manage `.txt` files with multi-console and debugging support.
Project description
🪖 WithOpen as f : "Your code's .txt guide"
A robust, zero-dependency .txt file manager for structured automation, pipelines, and bots. Built for reliability, integrity, and confidence. Replacing 20+ lines of code and logic with a single one-liner.
This project started from a simple frustration:
After writing hundreds of with open(file) as .. lines, building backups, validating structures, and hacking delete filters, I realized I was reinventing the same patterns over and over.
So I made withopen:
A zero-dependency Python utility that treats plain .txt files like structured datasets. Safely and scalably.
It's not a database. It's a reliable, structured backend for:
- Automations
- Bots
- CLI tools
- Low overhead microservices
🎯 Key Capabilities
- Structure Enforcement: First write or append defines whether data is 1D or 2D. Future data must match.
- CRUD Operations:
w()(write),r()(read),a()(append),d()(delete, trim, filter) - Multi console safe: Handles concurrent processes to avoid corruption.
- Backups & Snapshots: Automatic and manual backups. Time-based snapshots.
- Backdate: Point the DB to a previous backup folder for reading or restoring past states.
- Auto Folder Organization: All files, backups, and snapshots are kept in structured folders. No clutter.
- Anti-Tamper Safe Mode: Hidden files and structure locking help protect against manual edits or file corruption.
- Debug & Recovery: Scan for structural errors and selectively repair.
- Hide / Unhide: Protect files from accidental user tampering.
- Zero dependencies, intuitive API, and minimal setup.
🔑 Core Functions
✅ w(): Write or Overwrite
w(txt_name, write_list, is2d=None)
| Parameter | Type | Description |
|---|---|---|
txt_name |
str |
Name of the file (without extension). |
write_list |
list |
Data to write (1D or 2D list). Overwrites existing content. |
is2d |
bool or None |
Specify structure type on first write or when resetting. Only required if the file is new or empty. |
📝 Use [] to reset file structure.
📖 r(): Read
r(txt_name, index=None, set_new=[], notify_new=True)
| Parameter | Type | Description |
|---|---|---|
txt_name |
str |
Name of the file. |
index |
int, list, or None |
Return only data from specific index or columns. |
set_new |
list |
If file doesn't exist, create it using this list. |
notify_new |
bool |
Print a message if the file was auto-created. Default is True. |
➕ a(): Append
a(txt_name, append_list, is2d=None)
| Parameter | Type | Description |
|---|---|---|
txt_name |
str |
Name of the file. |
append_list |
list |
Data to append (must match existing structure). |
is2d |
bool or None |
Required only for new or empty files. |
❌ d(): Delete, Filter, or Trim
d(txt_name, del_list=[], index=None, cutoff=None, keep=None, reverse=False, size=None)
| Parameter | Type | Description |
|---|---|---|
txt_name |
str |
Name of the file. |
del_list |
list or str |
Values to match for deletion. |
index |
int, list, "*" or None |
Column or columns to match values in. "*" matches whole row. |
cutoff |
int |
Maximum number of deletions per value. |
keep |
int |
Retain only N matching rows. |
reverse |
bool |
Delete from end instead of top. |
size |
int |
Trim the file to only last N rows. |
🧠 You can mix and match these for precise cleanup strategies.
⚙️ Installation
pip install withopen
Example Workflow
import withopen as f
# Write 2D data (first write locks structure)
f.w("tasks", [["Name", "Status"], ["Ping", "Done"], ["Build", "Pending"]])
# Append new row (must match shape)
f.a("tasks", [["Test", "Pending"]])
# Read all rows
print(f.r("tasks"))
# Read specific column or row
print(f.r("tasks", index=1)) # second column across all rows
print(f.r("tasks", index=[0, 2])) # columns 0 and 2
# Delete by matching value
f.d("tasks", del_list=["Done"], index=1)
# Trim to last N rows
f.d("tasks", size=3)
# Backup and snapshot
f.backup("tasks")
f.snapshot("tasks", unit="h", gap=4)
# Backdate to a previous backup state
f.backdate(recency=1) # point DB to latest backup
f.backdate(recency=2) # point DB to second latest backup
# Debug or fix structure errors
f.debug("tasks", is2d=True, length=2)
# Hide or unhide
f.hide("tasks")
f.unhide("tasks")
📋 Data Models: 1D and 2D
| Mode | Example | Notes |
|---|---|---|
| 1D | ["apple", "banana", "pear"] |
Use is2d=False on first write or append |
| 2D | [["user","score"], ["alice",10], ["bob",8]] |
Use is2d=True on first write or append |
To reset structure (clear file):
f.w("filename", [], is2d=None)
🧹 Deletion and Filtering
d() is versatile. Combine arguments:
del_list(values or rows)index(column index, list of indices, or"*"for full row)cutoff(max deletes per value)keep(retain only N matches)reverse(delete from end)size(keep only last N rows)
Examples
Delete rows where status is "Done":
f.d("tasks", del_list=["Done"], index=1)
Delete a full exact row:
f.d("tasks", del_list=[["Ping","Done"]], index="*")
Trim to last 5 rows:
f.d("tasks", size=5)
Keep only N occurrences of a value:
f.d("tasks", del_list=["Pending"], index=1, keep=2)
🔢 Index Matching Patterns
1. Match by Single Index (Column)
f.d("tasks", del_list=["Pending"], index=1)
Deletes all rows where column 1 (status) is "Pending".
2. Match by Multiple Indexes (Multi-Column Logic)
f.d("tasks", del_list=[["Fix Bug", "High"]], index=[0, 2])
Deletes rows where column 0 is "Fix Bug" and column 2 is "High".
3. Match Entire Row
f.d("tasks", del_list=[["Fix Bug", "Done", "Low"]], index="*")
Deletes exact row match across all columns.
4. Match Multiple Rows by Value in a Column
f.d("tasks", del_list=[["Deploy"], ["Write Docs"]], index=0)
Deletes any row where column 0 (task name) matches "Deploy" or "Write Docs".
5. Selective Cutoff Deletes
f.d("tasks", del_list=["Pending"], index=1, cutoff=2)
Deletes only the first 2 rows where column 1 is "Pending".
6. Reverse Delete
f.d("tasks", del_list=["Done"], index=1, reverse=True)
Deletes from the bottom up, not top-down.
7. Trim by Row Count (No index)
f.d("tasks", size=5)
Keeps only the last 5 rows. Trims the rest.
🛠 Debugging and Recovery
When a file's structure is compromised:
debug("tasks", is2d=True, length=2)
- Flags bad rows and optionally cleans them.
- Use majority-vote backups to restore when corruption occurs.
📁 Backups, Snapshots, and Backdate
backup("tasks"): manual backupsnapshot("tasks", unit, gap, trim=None, begin=0): time-based backup- Units:
's','m','h','d','mo','y' gap: minimum time between snapshotstrim: max rows in snapshot
- Units:
backdate(recency, display=True): point the DB to a previous backup folderrecency=1→ latest backup,recency=2→ second latest, and so on- Useful for reading or restoring a past state without modifying the main folder
Backups and snapshots are stored in structured subfolders.
🔐 Hide or Unhide Files
hide("tasks"): prevents accidental edits or readsunhide("tasks"): makes file visible again- Use
"*"to hide or unhide all files
🧠 Best Practices
- Always use the API (
w,a,r,d) and avoid manual edits. - Run
debug()periodically for long-lived files. - Use
snapshot()in scripts that run continuously. - Use
backdate()to read or restore data from a previous backup state. - Use
hide()when bundling scripts to protect internal files. - Reset structure if your shape definition changes (with
w("file", [])).
🔧 Utility Functions
🖥️ consoles(): Console Mode Config
f.consoles(txt_name, multiple=True, alert=True)
Sets console interaction mode for:
- Multiple scripts
- Multiple tabs
- Bots and automation tools
Ensures safe concurrent access by coordinating file locks per console context. Use this when your files are read or written by multiple parallel environments.
🔕 warning(): Enable or Disable Read Alerts
f.warning(alert=False)
Turns on or off the warning that appears when reading a file outside of console safe mode.
Useful for bots or CI/CD logs where alerts aren't needed.
⏪ backdate(recency, display=True)
Points the DB to a previous backup folder instead of the live main package. Useful for inspecting or restoring past states without touching current data.
| Parameter | Type | Description |
|---|---|---|
recency |
int |
How many backups ago. 1 = latest, 2 = second latest, etc. |
display |
bool |
Whether to print the updated path. Default is True. |
f.backdate(recency=1) # point to latest backup
f.backdate(recency=3, display=False) # silent, third latest
⚠️ This overrides the active package path. Re-run your app or call the main path restore to return to live data.
🗑️ remove(txt_name, display=True)
Deletes the target file along with all backups and snapshots. ⚠️ Use with caution. This is irreversible.
ℹ️ info(txt_name, display=True)
Returns metadata such as structure type, total rows, shape, and last modified time.
🧪 debug(txt_name, is2d=None, length=None, display=True)
Scans for structure issues like row length mismatches or corrupted lines.
Can auto-fix when used with length or is2d.
📂 listdir(display=True)
Lists all structured text files currently being tracked.
🆘 help()
Prints a quick-reference summary of all available functions and parameters. Great for in-terminal use.
📄 License
This project is licensed under the MIT License. Use freely, modify, share. No warranties.
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